US 9,073,283 B2Granted

Corrugating roller for the manufacture of corrugated cardboard

AssigneeBHS Corrugated Maschinen-und Anlagenbau GmbH

InventorsAlfons Gnan, Markus Schell

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Abstract

A corrugating roller, for the manufacture of corrugated cardboard, has a rotation axis and a corrugation. The corrugation has corrugation peaks and corrugation troughs as well as corrugation flanks, which connect the corrugation peaks and the corrugation troughs with each other. The corrugating roller has an air discharge device with an air collection groove, which is open outwardly in a radial direction, runs at least section-wise around the rotation axis, intersects at least some of the corrugation peaks and is limited by a first and a second side wall, which face each other. The air discharge device has an air connection channel, which extends from the side walls of the air collection groove, and an air suction channel, which is in flow connection with the air connection channel and can be subjected to negative pressure.

Claims20

Dependent claims

A corrugating roller for the manufacturing a corrugated cardboard, the corrugating roller comprising:

a rotation axis;
a corrugation for corrugating the corrugated cardboard, the corrugation comprising corrugation peaks, corrugation troughs, which are arranged alternately to the corrugation peaks, and corrugation flanks, which extend between the corrugation peaks and the corrugation troughs and connect them with one another;
and
an air discharge device comprising at least one air collection groove, which is open outwardly in a radial direction, said at least one air collection groove extending at least section-wise around the rotation axis, said at least one air collection groove intersecting some of the corrugation peaks, and said at least one air collection groove being limited by a first side wall and a second side wall, respectively, which face each other, said air discharge device further comprising at least one air connection channel, which extends from at least one of the first side wall and the second side wall of at least one air collection groove, and said air discharge device further comprising at least one air suction channel, which is in flow connection with the at least one air connection channel, and can be subjected to negative pressure, wherein the air connection channel extends obliquely to the air collection groove.

1 more element

A corrugating roller for manufacturing a corrugated cardboard, the corrugating roller comprising:

a rotation axis;
a corrugation comprising corrugation peaks, corrugation troughs and corrugation flanks, said corrugation peaks being connected to said corrugation troughs via said corrugation flanks;
and
an air discharge device comprising at least one air collection groove, said at least one air collection groove being open at one end thereof, said at least one air collection groove being defined by at least a first side wall and a second side wall, said first side wall being located opposite said second side wall, said air discharge device further comprising at least one air connection channel, said at least one air connection channel extending from at least one of the first side wall and the second side wall, wherein said air connection channel extends at an oblique angle with respect to said air collection groove, said air discharge device further comprising at least one air suction channel, said at least one air suction channel being in fluid communication with said at least one air connection channel.

1 more element

A corrugating roller for manufacturing a corrugated cardboard, the corrugating roller comprising:

a rotation axis;
a roller sleeve comprising a corrugation, said corrugation comprising corrugation peaks, corrugation troughs and corrugation flanks, said corrugation peaks being connected to said corrugation troughs via said corrugation flanks, said roller sleeve comprising a first side wall portion, a second side wall portion and an angled wall portion, said angled wall portion extending at an oblique angle with respect to at least one of said first side wall portion and said second side wall portion, at least a portion of said angle wall portion being located adjacent to one of said first side wall portion and said second side wall portion, said first side wall portion and said second side wall portion extending in a radial direction with respect to said rotation axis, said first side wall portion being located opposite said second side wall portion;
and
an air discharge device comprising at least one air collection groove, at least said first side wall portion and said second side wall portion defining said at least one air collection groove, said at least one air collection groove being open at one end thereof, said air discharge device further comprising at least one air connection channel, said angled side wall portion defining at least a portion of said at least one air connection channel, wherein said air connection channel extends at said oblique angle with respect to said air collection groove, said air discharge device further comprising at least one air suction channel, said at least one air suction channel being in fluid communication with said at least one air connection channel.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 13/303,831Filed 23 Nov 2011
Priority: EP 1019596220 Dec 2010
Published: US 2012/0157276 A121 Jun 2012
Granted: 7 Jul 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

B31F 1/285
Details, e.g. provisions for drying, moistening, pressing: heating or drying equipment
B31F 1/2854
Details, e.g. provisions for drying, moistening, pressing: means for keeping the sheet in contact with one of the corrugating rollers after…
B31F 1/2863
Details, e.g. provisions for drying, moistening, pressing: corrugating cylinders; Supporting or positioning means therefor; Drives therefor
B31F
Mechanical working or deformation of paper, cardboard or material worked in a