Method for predicting the presence of product defects during an intermediate processing step of a thin product wound in a roll, which provides for—receiving a roll of thin product that has been assigned a unique identification code stored in a database system, this latter containing process and/or product parameters detected in the production steps of said thin product wound in said roll upstream of said intermediate processing step, associated with said unique identification code,—accessing said database system,—entering one or more of the process and/or product parameters associated with the unique identification code of said roll contained in said database system in a predictive model, which uses a correlation, created by means of machine learning logics, from historicized values related to the process and/or product parameters output from said intermediate processing step and historicized values related to process and/or product parameters of the same rolls detected in the production steps of said rolls upstream of said intermediate processing step, in order to predict product parameters output from said intermediate processing step,—comparing said aforesaid product parameters with respective predefined limit values,—generating predictive diagnosis information of thin product defects based on the result of said comparison.

According to an example aspect of the present invention, there is provided a method, comprising: controlling suction with predetermined force in a known measurement area to a moving cardboard or paper web in a manufacturing process, detecting on-line measurement information on deviation of the moving cardboard or paper web in the manufacturing process caused by the suction with predetermined force in the known measurement area, and determining elastic modulus of the moving cardboard or paper web in the manufacturing process on the basis of the measured deviation.

An apparatus is provided for handling overlay sheet material on a cutting apparatus including a conveyor for moving work material in a longitudinal direction and a support for positioning a tensioner frame adjacent the conveyor. A tensioner frame, attached to the support, has a nip wheel and a drive for rotating the nip wheel with a tangential speed in excess of the longitudinal conveyor speed attached to the tensioner frame. The nip wheel engages the overlay sheet material applying a tension thereto in the same longitudinal direction as the conveyor.

Rewinder for making paper logs, including a winding station with a first winding roller and a second winding roller delimiting a nip and a third winding roller downstream of the other rollers. The rewinder includes optical elements for detecting, at a predetermined time, an actual position of each log in said winding station and an electronic unit connected to the optical elements and programmed to compare the actual position with a theoretical position of the log at the time, the electronic unit being connected to at least one motor driving the rollers and programmed to modify the speed of the at least one motor when a deviation between the actual and theoretical positions exceeds a pre-established value, the electronic unit being also programmed to operate said optical elements at the time.

A sheet processing apparatus includes a sheet conveyor, a processing tool, a tool contact separation device, a tool moving device, and a tool facing device. The sheet conveyor is configured to convey a sheet. The processing tool is configured to perform processing to the sheet. The tool contact separation device is configured to contact and separate the processing tool with respect to the sheet. The tool moving device is configured to move the processing tool in a direction intersecting a conveyance direction of the sheet. The tool facing device includes a tool facing portion and a sheet gripper. The tool facing portion includes a rotary member supported by a shaft and is disposed at a position facing the processing tool via the sheet. The sheet gripper includes a rotary member supported by a shaft and is configured to grip the sheet with the tool facing portion.

A device for applying a tape at least partially adhesive including a support having a handling system for handling the support, a reel-holder constrained to the support, support in a compliant way a reel including the tape and defining a first axis of rotation around which the reel rotates, a tensioner constrained to one of the support and the reel-holder is configured to dispense the tape in tension, wherein the support separates the reel-holder and the tensioner from the handling system in such a way that when the handling system is placed on at least one wall and the tensioner dispenses the tape on to a surface, only the handling system facing to the wall.

A method for reel changing in automatic machines including: preparing a carriage having a robotic arm including a gripped with a gripper at its free end for retaining a reel; the carriage has a support for the reel and a container for collecting cores of empty reels; positioning the reel on the support defining a predetermined position and memorised by the arm; moving the carriage forward toward a rotating shaft in a position allowing movement of the arm towards the shaft; reading a code on the shaft by a reading device on the arm; sending a signal by the reading device corresponding to the reading of the code to a processing unit with memorisation of the position of the shaft; picking up of an empty core from the rotating shaft and releasing the core in the container; picking up the reel; inserting the reel in the rotating shaft.

A consumer width sized roll comprising wound web material comprising a tail. The tail may comprise a bonding material. The bonding material may be arranged in a novel pattern.

A sheet processing apparatus includes a sheet conveyor configured to convey a sheet, a processing tool configured to perform processing to the sheet, a tool contact separation device, a tool moving device, and a tool facing device. The tool contact separation device is configured to contact and separate the processing tool to the sheet. The tool moving device is configured to move the processing tool in a direction intersecting a conveyance direction of the sheet. The tool facing device has an opposing face and is disposed at a position at which the tool facing portion faces the processing tool via the sheet. The tool facing device is configured to move to change the tool facing portion in accordance with a relative moving direction of the sheet with respect to the processing tool when the processing tool performs the processing to the sheet.

A sheet processing apparatus includes a sheet conveyor, a processing tool, a tool contact separation device, a tool moving device, and a tool facing device. The sheet conveyor is configured to convey a sheet. The processing tool is configured to perform processing to the sheet. The tool contact separation device is configured to contact and separate the processing tool with respect to the sheet. The tool moving device is configured to move the processing tool in a direction intersecting a conveyance direction of the sheet. The tool facing device includes a tool facing portion and a sheet gripper. The tool facing portion includes a rotary member supported by a shaft and is disposed at a position facing the processing tool via the sheet. The sheet gripper includes a rotary member supported by a shaft and is configured to grip the sheet with the tool facing portion.