Device for grooving cardboard cuttings

US9296118B2 · kind B2 · utility

Assignee

• Kolbus GmbH & Co. KG · DE

Inventors

• Klaus Gerke · Bassum, DE
• Gerhard Lintelmann · Rahden, DE
• Leonid Ugorets · Rahden, DE

Key dates

• Filing date: Oct 30, 2013
• Grant date: Mar 29, 2016
• Expiry date: Apr 29, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T83/0304
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A device (1) for grooving cardboard cuttings (2, 3) that features a driven, horizontally supported transport drum (11) and spaced-apart endless belts (51) that revolve around rollers (54.1 to 54.8) and effectively convey the cardboard cuttings (2, 3) by pressing them against the drum shell. Groove cutting tools (72) are arranged between the belts (51) at a defined distance from the drum shell and make it possible to produce grooves with essentially triangular cross section in the cardboard cuttings (2). In order to adjust the aperture angle of the grooves independently of one another, the adjustment of the angle within the respective groove cutting tool (72) is realized by curved guides (77). The center of curvature (81) of the curved guide (77) lies in the region of the drum shell, as well as in the region of the blade tip (71a) of the knife (71), such that the aperture angle and the depth of the groove can be adjusted independently of one another.