A plant for producing corrugated cardboard. The plant includes an arrangement for producing a corrugated cardboard web laminated on one side, the arrangement having a corrugating apparatus for generating a corrugated web, which has a corrugation, from a first material web, having a glue-applying apparatus for applying glue to tips of the corrugation of the corrugated web, and having a pressing apparatus for pressing a top web onto the tips, provided with glue, of the corrugated web. The plant furthermore has a severing apparatus which is arranged upstream of the corrugating apparatus and which serves for at least regionally severing the first material web in the transverse direction thereof.

A system and method for producing a board product characterized by having two corrugated mediums and at least one embossed medium in the board product. The board product may further include one or more facings that are adhesively coupled to either the corrugated medium, the embossed medium, or both. Generally speaking, a corrugated medium may be characterized as a paper product that exhibits flutes induced by a cross-corrugating process such that the induced flutes are perpendicular (or at least not congruent) with the machine direction of the paper product. An embossed medium may be characterized as a paper product that exhibits flutes induced by a linear-embossing process such that the induced flutes are aligned with the machine direction of the paper product. A resultant board product is stronger and more efficiently produced because of the linearly-embossed medium harnessing the natural strength of the paper in the machine direction.

A corrugated sheet processing apparatus is disclosed, comprising feed and guide rollers for selecting, moving and supporting sheets or webs to a corrugator for forming a corrugated sheet; and a control system for controlling the sheet processing equipment or a cutter; the sheet processing apparatus further comprising a visual inspection unit for reading printed information markers on at least one printed sheet or web as the printed sheet or web pass through the corrugated sheet processing apparatus, or corrugator; and wherein the control system further has a data look-up table whereby the apparatus can identify what products will be produced downstream of the visual inspection unit, and the required settings for the sheet processing equipment or corrugator for those products.

A plant (10) for the production of corrugated cardboard comprising: a corrugating unit (36) adapted to produce containerboard, and a double baker (60) adapted to receive the containerboard. The corrugating unit (36) is positioned in proximity to an output end (66) of the double baker (60). The plant (10) further comprises a transfer unit (72) adapted to receive the containerboard and move it. The transfer unit (72) comprising: an input end (722) for the containerboard positioned in proximity to the corrugating unit (36), and an output end (724) for the containerboard positioned in proximity to an input end (64) of the double baker (60).

A corrugated sheet processing apparatus (120) is disclosed, comprising feed and guide rollers for selecting, moving and supporting sheets or webs to a corrugator (136) for forming a corrugated sheet; and a control system for controlling the sheet processing equipment (136) or a cutter (148); the sheet processing apparatus (136) further comprising a visual inspection unit (162) for reading printed information markers on at least one printed sheet or web as the printed sheet or web pass through the corrugated sheet processing apparatus (136) or corrugator; and wherein the control system further has a data look-up table whereby the apparatus (120) can identify what products will be produced downstream of the visual inspection unit, and the required settings for the sheet processing equipment or corrugator for those products.

A corrugated sheet processing apparatus (120) is disclosed, comprising feed and guide rollers for selecting, moving and supporting sheets or webs to a corrugator (136) for forming a corrugated sheet; and a control system for controlling the sheet processing equipment (136) or a cutter (148); the sheet processing apparatus (136) further comprising a visual inspection unit (162) for reading printed information markers on at least one printed sheet or web as the printed sheet or web pass through the corrugated sheet processing apparatus (136), or corrugator; and wherein the control system further has a data look-up table whereby the apparatus (120) can identify what products will be produced downstream of the visual inspection unit, and the required settings for the sheet processing equipment or corrugator for those products.

A plant for producing corrugated cardboard. The plant includes an arrangement for producing a corrugated cardboard web laminated on one side, the arrangement having a corrugating apparatus for generating a corrugated web, which has a corrugation, from a first material web, having a glue-applying apparatus for applying glue to tips of the corrugation of the corrugated web, and having a pressing apparatus for pressing a top web onto the tips, provided with glue, of the corrugated web. The plant furthermore has a severing apparatus which is arranged upstream of the corrugating apparatus and which serves for at least regionally severing the first material web in the transverse direction thereof.

An apparatus to create corrugated cardboard on the site of a system for automatically forming packaging boxes for packaging an arrangement of one or more item(s) to be shipped, said corrugated cardboard having at least one corrugated layer between two flat layers, comprising at least two supply stations for supplying two different single-faced corrugated cardboards, each single-faced corrugated cardboard comprising a corrugated layer (having a closed side with an attached flat layer and an open side opposite to said closed side, a supply station for supplying a closing layer, a microprocessor communicatively coupled to obtain information on the arrangement to be shipped, the information relating to at least one of overall dimensions, weight, shape, shipping conditions, fragility, sensitivity to moisture, value, shipping destination, and the obtained information allowing selection, based on the obtained information, of at least one of said at least two different single-faced corrugated cardboards, and an attaching station that attaches the closing layer to the selected first single-faced cardboard to sandwich the corrugated layer between the flat layer and the closing layer.

A cardboard sheet defect detection device is for detecting a defect of a single-faced cardboard sheet guided by a guide member outside a corrugated core. The cardboard sheet defect detection device includes an irradiation device that irradiates the core with light at an irradiation angle inclined as much as a preset predetermined angle with respect to the single-faced cardboard sheet; an imaging device that images an irradiated portion of the light in the core; an image processing device that defines a bright section or a dark section along a transport direction of the single-faced cardboard sheet, based on a captured image captured by the imaging device; and a determination device that determines a quality by comparing a length of the bright section or a length of the dark section which is defined by the image processing device with a preset determination value.

A device for cardboard storage and removal for a bridge in a corrugated cardboard production line includes a bridge over which a conveyor system for conveying the single-sided laminated corrugated cardboard web is arranged. The exit end of the conveyor system for conveying the single-sided laminated corrugated cardboard web is provided with a clamping and cutting unit and a movable cardboard storage carriage unit is provided under the conveyor system for conveying the single-sided laminated corrugated cardboard web, under which conveyor system a conveyor belt system is provided in the bridge, and in the bridge an opening is provided, under which a waste cardboard collecting carriage is provided. The movable cardboard storage carriage unit stores the cardboard by means of cardboard storage rolls, which retain the single-sided laminated corrugated cardboard web flat on the bridge. In the event that a splicing defect is detected, the defective piece is cut out by the clamping and cutting unit and ejected by the conveyor belt system to the waste cardboard collecting carriage through the opening. Hence, it follows that productivity is improved.