A method for making a dual fluted corrugated board includes providing a first single face corrugated board having a liner layer and a fluted layer attached to the liner layer and providing a second single face corrugated board having a liner layer and a fluted layer attached to the liner layer. The method also includes arranging the first single face corrugated board and the second single face corrugated board such that the fluted layers thereof face one another and attaching the first single face corrugated board to the second single face corrugated board.

A device for determining the quality of a moving corrugated board web with at least one cover web and at least one corrugated web. A quality determination sensor arrangement, which includes a first quality determination sensor unit facing the corrugated board web, is provided for determining the quality of the corrugated board web on its first side, and a second quality determination sensor unit, facing a second side of the corrugated board web opposite the first side, for determining the quality of the corrugated board web on its second side. The device includes an evaluation unit that is in signal contact with the quality determination sensor arrangement and evaluates signals from the quality determination sensor arrangement related to the quality of the corrugated board web.

An arrangement for a corrugator for producing corrugated cardboard comprises a material web delivery device for delivering a material web and an edge cutting device, which is arranged downstream of the material web delivery device in a transport direction of the material web and has at least one edge cutting apparatus for edge-cutting the material web, and a digital printing device, which is arranged downstream of the edge cutting device in the transport direction of the material web for printing on the material web.

The invention relates to a method and an apparatus for the production of a corrugated cardboard product. The apparatus comprises a first single facer and a second single facer which are provided in each case with a press-down belt and with a first and a second grooving roller respectively. The first and the second grooving roller are designed for embossing a wave profile onto a first and a second paper web respectively. The press-down belts, together with the respective grooving rollers, for connecting the first and the second paper webs in each case to a non-corrugated web for the production of a first and a second single-flute corrugated cardboard web respectively. The first single facer is equipped with a first oblique guide roller, the axis of rotation of which is inclined at a vertical inclination angle between side margins of the first paper web.

The invention relates to an apparatus for producing corrugated cardboard products. Said apparatus comprises a first one-sided machine and a second one-sided machine which are configured in each case for producing a single flute corrugated cardboard web. Furthermore, the apparatus has a combining means which is configured for connecting the single flute corrugated cardboard webs. Here, the combining means is provided with a convergence region which is configured for mutual adaptation of the single flute corrugated cardboard webs. Furthermore, the invention relates to a method for producing corrugated cardboard products, in which method a first single flute corrugated cardboard web is connected to a second single flute corrugated cardboard web. During connection, a first single flute corrugated cardboard web and a second single flute corrugated cardboard web run through a convergence region.

The single facer includes a first feed path for feeding a first paper web towards a corrugating nip defined between a first corrugating roller and a second corrugating roller. The single facer also includes a second feed path for feeding a second paper web towards a pressure nip defined between the first corrugating roller and a pressure member co-acting with the first corrugating roller. A respective heating system is provided along each feed path. Each heating system includes at least a pair of heating plates.

The invention relates to an assembly for producing a web of corrugated cardboard. The assembly has a corrugating device for producing a corrugated web, a glue application device for applying glue to the corrugated web and a pressure belt device which has an endless pressure belt guided around a deflection roller and a belt course regulating roller for pressing a cover layer against the corrugated web provided with glue. The pressure belt device has at least one pressure belt detection device associated to the pressure belt, the pressure belt detection device comprising a first pressure belt detection means for detecting the position of a first outer endless side edge of the pressure belt in the transverse direction thereof, a pressure belt regulating device in signal communication with the pressure belt detection device and an actuating device connected to the belt course regulating roller displacement device for displacing the belt course regulating roller depending on the regulating signals received from the pressure belt regulating device.

The invention relates to a method for operating a system (2) comprising a corrugator (4) and a printing machine (6), wherein the corrugator (4) has a number of processing units (8) for processing one or more paper webs (18), wherein the printing machine (6) prints a paper web and outputs same as a printed paper web (18) to the corrugator (4), wherein the system (2) has a speed controller (34) which specifies a speed of a lead machine for a number of follower machines, such that they follow the lead machine, wherein the printing machine (6) is the lead machine, wherein at least one of the processing 10 units (8) of the corrugator (4) is a follower machine. The invention also relates to a corresponding system (2).

An alignment device for aligning laminating sheets in a corrugated cardboard laminator may include, one after another along a transport path of the laminating sheets in a forward feeding direction: a first transport unit configured to transport the laminating sheets at transport speed; a first acceleration unit configured to increase the transport speed of the laminating sheets; and a second transport unit. The second transport unit may include at least one first movable abutting element transverse to the forward feeding direction of the laminating sheets and configured to align the laminating sheets.

The device includes a roller for guiding the web-like-material, supported idle about a rotation axis and having a first axial end and a second axial end. Two lateral supports support the guide roller. The guide roller is configured so that the rotation axis thereof may be inclined with respect to a position orthogonal to the advancement direction of the web-like material, to compensate changes in the transversal direction of the tension in the web-like material.