Abstract: A line is disclosed for producing logs of web material provided with a system for controlling, in real time, one or more parameters of the logs produced by the line and for facilitating any corrective actions. The line includes a rewinder, a feed path for the logs from the rewinder towards at least one station arranged downstream of the rewinder; and a measurement station. The measurement station includes at least a measurement device for measuring at least one parameter of logs randomly selected from the feed path and held in the measurement station, for example a device for measuring the firmness of the logs. The measurement station further includes first transferring members for transferring selected logs from the feed path to the measurement station, and second transferring members for transferring selected logs from the measurement station to the feed path.

Abstract: The method provides for detecting a temporary stop request by a machine of the line, for example to replace a member subject to wear or a consumable. In view of this stop, the speed of the line is modulated so as to increase, for example, the level of filling of an accumulator, and makes sure that the subsequent temporary stop has a minimum effect on the overall productivity of the line.

Abstract: A line is disclosed for producing logs of web material provided with a system for controlling, in real time, one or more parameters of the logs produced by the line and for facilitating any corrective actions. The line includes a rewinder, a feed path for the logs from the rewinder towards at least one station arranged downstream of the rewinder; and a measurement station. The measurement station includes at least a measurement device for measuring at least one parameter of logs randomly selected from the feed path and held in the measurement station, for example a device for measuring the firmness of the logs. The measurement station further includes first transferring members for transferring selected logs from the feed path to the measurement station, and second transferring members for transferring selected logs from the measurement station to the feed path.

Abstract: The method provides for detecting a temporary stop request by a machine of the line, for example to replace a member subject to wear or a consumable. In view of this stop, the speed of the line is modulated so as to increase, for example, the level of filling of an accumulator, and makes sure that the subsequent temporary stop has a minimum effect on the overall productivity of the line.

Abstract: A gluing device including a guide roller to guide the tail of the log; on the guide roller, retaining elements to engage and retain the tail on the guide roller; a gluing member, to apply a glue to the tail retained on the guide roller. There are also provided embossing members, arranged and controlled to emboss a portion of the tail of the log. The gluing member applies the glue to embossing protrusions formed by the embossing members.

Abstract: A gluing device including a guide roller to guide the tail of the log; on the guide roller, retaining elements to engage and retain the tail on the guide roller; a gluing member, to apply a glue to the tail retained on the guide roller. There are also provided embossing members, arranged and controlled to emboss a portion of the tail of the log. The gluing member applies the glue to embossing protrusions formed by the embossing members.

Abstract: A gluing device including a guide roller to guide the tail of the log; on the guide roller, retaining elements to engage and retain the tail on the guide roller; a gluing member, to apply a glue to the tail retained on the guide roller. There are also provided embossing members, arranged and controlled to emboss a portion of the tail of the log. The gluing member applies the glue to embossing protrusions formed by the embossing members.

Abstract: A gluing device including a guide roller to guide the tail of the log; on the guide roller, retaining elements to engage and retain the tail on the guide roller; a gluing member, to apply a glue to the tail retained on the guide roller. There are also provided embossing members, arranged and controlled to emboss a portion of the tail of the log. The gluing member applies the glue to embossing protrusions formed by the embossing members.