Abstract: In a corrugated cardboard machine and in a method of producing a web of corrugated cardboard, an electronic control device is provided in order to avoid downtimes of the corrugated cardboard machine, said control device being designed such that at least one web length of the web of corrugated cardboard between the at least one production device and a longitudinal cutting device is detectable and an application width of the at least one production device is variable in dependence on the at least one web length. Changing the application width prevents an escape of glue from the sides so that there is no need for cleaning.

Abstract: In a corrugated cardboard machine and in a method of producing a web of corrugated cardboard, an electronic control device is provided in order to avoid downtimes of the corrugated cardboard machine, said control device being designed such that at least one web length of the web of corrugated cardboard between the at least one production device and a longitudinal cutting device is detectable and an application width of the at least one production device is variable in dependence on the at least one web length. Changing the application width prevents an escape of glue from the sides so that there is no need for cleaning.

Abstract: In a method for splicing material webs and an associated splicing device it is envisaged, for producing an improved joint, to join the material webs in the area of cut edges essentially overlap-free to form an endless material web, the cut edges being produced by cutting the material webs at least along a first cutting direction and along a second cutting direction, and the cutting directions enclosing an angle ? such that 0°<?<180° applies.

Abstract: A method of implementing a change of format in a system for cutting sheets of corrugated board comprises the application of at least three first longitudinal cuts by a first group of longitudinal-cutter tool and at least three second longitudinal cuts by a second group of longitudinal-cutter tools. All the three longitudinal cuts overlap one another in the conveying direction. In this way, the corrugated board can be exploited more efficiently in the area of format change.

Abstract: In a method for splicing material webs and an associated splicing device it is envisaged, for producing an improved joint, to join the material webs in the area of cut edges essentially overlap-free to form an endless material web, the cut edges being produced by cutting the material webs at least along a first cutting direction and along a second cutting direction, and the cutting directions enclosing an angle ? such that 0°<?<180° applies.

Abstract: A method of implementing a change of format in a system for cutting sheets of corrugated board comprises the application of at least three first longitudinal cuts by a first group of longitudinal-cutter tool and at least three second longitudinal cuts by a second group of longitudinal-cutter tools. All the three longitudinal cuts overlap one another in the conveying direction. In this way, the corrugated board can be exploited more efficiently in the area of format change.

Abstract: In a corrugating plant for the manufacture of sheets of corrugated board, it is provided, for improved flexibility and productivity to be obtained, that several continuous sectional webs of corrugated board Bi, which are allocated to varying formats of sheets of corrugated board, are produced from a web of corrugated board on a cutter and grooving unit; that they are divided on a switch into at least three levels and supplied to a cross cutter with at least three sectional cross cutters for sheets of corrugated board to be cut to size. The fact that the web of corrugated board can be cut and divided into at least three sectional webs of corrugated board Bi, raises the productivity and flexibility of the corrugating plant. Furthermore, a method of manufacturing sheets of corrugated is described.

Abstract: The present invention relates to a device 7 for cutting track-like material 1 as well as a method for producing transverse cuts 6 in a track-like material 1 in a continuous operating process. To increase the service life of the device 7 and to improve the cut reliability, it is proposed that the counter-tool 10 to the cutting tool 8 form, in the active position (cutting position), a blunt counter-surface 12 for the cutting tool 8, which counter-surface is in direct contact with the track-like material 1 and is not cuttable.

Abstract: A corrugating machine for the manufacture of sheets of corrugated board comprises a first manufacturing unit for the production of a first web of corrugated board, a second manufacturing unit for the production of a second web of corrugated board, a mounting unit, which is disposed downstream of the manufacturing units in a working direction, for non-adhesively bringing together the first web of corrugated board and the second web of corrugated board and a working unit, which is disposed downstream of the mounting unit, for jointly working the first web of corrugated board and the at least second web of corrugated board that lie on top of each other.

Abstract: A web of material serves for use in a corrugating machine for the manufacture of sheets of corrugated board. The corrugating machine comprises at least two unroll stands for unwinding webs of material. A fluting unit serves for the manufacture of at least one corrugated medium from one of the webs of material. A processing equipment serves for uniting the webs of material to form a web of corrugated board. The sheets of corrugated board are cut from the web of corrugated board by means of a cutting unit. A printing system is provided for printing at least one of the webs. The web of material has a coating for improved printing quality. A method for the manufacture of sheets of corrugated board is specified, using such a web of material. The results are sheets of corrugated board with improved imprint.

Abstract: A corrugating machine for the manufacture of sheets of corrugated board comprises a first manufacturing unit for the production of a first web of corrugated board, a second manufacturing unit for the production of a second web of corrugated board, a mounting unit, which is disposed downstream of the manufacturing units in a working direction, for non-adhesively bringing together the first web of corrugated board and the second web of corrugated board and a working unit, which is disposed downstream of the mounting unit, for jointly working the first web of corrugated board and the at least second web of corrugated board that lie on top of each other.

Abstract: The cutting device (1) for a continuous material, in particular a corrugated web, consists of rotating paired cutter bars (5, 6) mounted in bearings above one another, with blades (8) which run in the lengthwise direction of the cutter bars. Each cutter bar (5, 6) is connected directly with a driving motor (10) on each end (9). A synchronizing device (11, 12, 13) for the cutter bars (5, 6) is present.FIG. 1 is the main illustration.

Abstract: A cross cutter for web stock, in particular for a corrugated cardboard web, has tube-shaped cutter cylinders (4, 5) formed of a composite fiber material which are rotatably mounted in pairs above each other in a machine frame (2, 3). Cutter holders (15) for cutters (16) are fastened on the cutter cylinders, which are disposed along the circumference of each cutter cylinder extending diagonally. Counterweights (17) are located on the cutter cylinders opposite the cutter holders. The cutter cylinders mesh with each other via gear wheels (10), by which the cutter cylinders can be driven. The cutter cylinders (4, 5), the cutter holders (15) and the counterweights (17) are made of a composite fiber material with a heat expansion coefficient near or equal to 0 mm/K. The bearings (7) at both ends of the cutter cylinders are fixed bearings.

Abstract: An apparatus for the manufacture of sheets of corrugated board of variable size comprises a cross cutter for severing the entire web of corrugated board disposed, in the conveying direction of a web of corrugated board, downstream of at least one longitudinal cutting arrangement, of cutting devices for cutting lateral margins and of discharge devices for the margins cut off, and upstream of at least one cross cutting arrangement for cutting sheets of corrugated board.

Abstract: A heating unit for a corrugated board manufacturing plant comprises heating elements which consist of a comparatively thin heating plate and a supporting structure disposed at a distance from, and below, the latter. The heating plate is supported on the supporting structure by thermally insulating props. Furthermore, a heat insulation layer is disposed between the respective heating plate and the supporting structure.