METHOD AND DEVICE FOR TESTING BOX BLANKS

摘要

In a method for testing a box blank formed from flat material, the said box blank is guided along a blade (12). At least one of the layers (10) is folded onto the blade (12), so that it is located between the layers (10, 14). A component (16) is located opposite the blade (12), which component is located outside the box blank (2). Waves (17, 21) which are affected by the layer (10) are propagated between the blade (12) and the component (16). In order to achieve a high contrast, the blade has at least one physical property which differs from the corresponding physical property of the box blank. (FIG. 1)

主权项

1. A method for testing at least one box blank formed from flat material, which is transported in a running direction and is folded transversely thereto in layers on one another, said at least one box blank is guided along on at least one blade, onto which at least one of said layers is folded, so that the at least one blade is located between said layers, and at least one component is located opposite said at least one blade, said component is provided outside said at least one box blank, and waves being propagated between said at least one blade and said at least one component, said at least one blade and said at least one box blank having at least one physical property with respect to said waves which differ from each other.