The invention relates to a method of creasing sheets (12) by using a creasing tool (14, 20, 21) cooperating with a counter element (22, 23), comprising the following steps: a creasing plate blank (24′) is provided with at least one creasing projection (26) by plastically deforming the material of the blank (24′) so as to form a creasing plate (24), the creasing plate (24) is mounted to a creasing tool (14, 20, 21), sheets (12) to be provided with at least one crease are advanced through a gap between the creasing tool (14, 20, 21) and the counter element (22, 23).

The invention relates to a method of creasing sheets (12) by using a creasing tool (14, 20, 21) cooperating with a counter element (22, 23), comprising the following steps: a creasing plate blank (24′) is provided with at least one creasing projection (26) by plastically deforming the material of the blank (24′) so as to form a creasing plate (24), the creasing plate (24) is mounted to a creasing tool (14, 20, 21), sheets (12) to be provided with at least one crease are advanced through a gap between the creasing tool (14, 20, 21) and the counter element (22, 23).

A corrugated cardboard production plant with double output side includes a corrugation unit, configured to form a composite cardboard sheet, the corrugation unit includes a corrugator and a plurality of continuous paper web storing units, and a first processing station arranged downstream of the corrugation unit along a first direction of movement of the composite cardboard. The plant also includes a second processing station arranged downstream of the corrugation unit in sequence along a second direction of movement of the composite cardboard different from the first direction of movement.

An analysis device and an analysis method for a preparatory work time in a paper converting machine, includes an operator position detection device configured to detect a working position of an operator in the preparatory work time of a box making machine, an action diagram creation unit configured to create an action diagram of the operator based on the detection result of the operator position detection device, a work content item table creation unit configured to create a work content item table indicating a work content in the preparatory work time for each item based on operation processing data and operation data of the box making machine, and an operation process improvement item selection unit configured to select an improvement item of an operation process in the preparatory work time based on a creation result of the action diagram creation unit and the work content item table creation unit.

An analysis device and an analysis method for a preparatory work time in a paper converting machine, includes an operator position detection device configured to detect a working position of an operator in the preparatory work time of a box making machine, an action diagram creation unit configured to create an action diagram of the operator based on the detection result of the operator position detection device, a work content item table creation unit configured to create a work content item table indicating a work content in the preparatory work time for each item based on operation processing data and operation data of the box making machine, and an operation process improvement item selection unit configured to select an improvement item of an operation process in the preparatory work time based on a creation result of the action diagram creation unit and the work content item table creation unit.

Provided are a device and a method for replacing a stage roll unit. This stage roll unit replacement device for performing work for replacing a stage roll unit between a single facer and a stage roll unit transporting cart is provided with: a replacement cart that can move in an X-direction in which the stage roll unit is replaced; a moving device that can move the replacement cart in the X-direction; and a connection device that connects the replacement cart and the stage roll unit.

Provided are a device and a method for replacing a stage roll unit. This stage roll unit replacement device for performing work for replacing a stage roll unit between a single facer and a stage roll unit transporting cart is provided with: a replacement cart that can move in an X-direction in which the stage roll unit is replaced; a moving device that can move the replacement cart in the X-direction; and a connection device that connects the replacement cart and the stage roll unit.

Provided are: a device and a method for transporting a stage roll unit; and a stage roll unit transporting cart. The present invention comprises: a loading deck having accommodating portions for accommodating a stage roll unit; a first vehicle wheel that can move the loading deck in an X-direction in which the stage roll unit is replaced; a second vehicle wheel that can move the loading deck in a Y-direction crossing the X-direction; a first raising/lowering device that can raise/lower the first vehicle wheel with respect to a traveling surface; and a moving device which is disposed on the traveling surface side, and which raises the first vehicle wheel from the traveling surface by the first raising/lowering device, and can move the loading deck and the first raising/lowering device in the Y-direction while the second vehicle wheel is grounded to the traveling surface.

An analysis device and an analysis method for a preparatory work time in a paper converting machine, includes an operator position detection device configured to detect a working position of an operator in the preparatory work time of a box making machine, an action diagram creation unit configured to create an action diagram of the operator based on the detection result of the operator position detection device, a work content item table creation unit configured to create a work content item table indicating a work content in the preparatory work time for each item based on operation processing data and operation data of the box making machine, and an operation process improvement item selection unit configured to select an improvement item of an operation process in the preparatory work time based on a creation result of the action diagram creation unit and the work content item table creation unit.

An analysis device and an analysis method for a preparatory work time in a paper converting machine, includes an operator position detection device configured to detect a working position of an operator in the preparatory work time of a box making machine, an action diagram creation unit configured to create an action diagram of the operator based on the detection result of the operator position detection device, a work content item table creation unit configured to create a work content item table indicating a work content in the preparatory work time for each item based on operation processing data and operation data of the box making machine, and an operation process improvement item selection unit configured to select an improvement item of an operation process in the preparatory work time based on a creation result of the action diagram creation unit and the work content item table creation unit.