Proposed is a friction shaft for a slitter that enables a winding pipe to stably roll unit materials formed by cutting a raw material, such as a raw fabric or film, with predetermined intervals, that can fix the rolling pipe even at a low pressure of compressed air, and that has a wide range of available rolling tension because the pressure range of compressed air that can adjust winding torque is wide.

A machining data generation apparatus 4 is used in a sheet process system, which executes a plurality of times of processes by using one or more sheet process apparatuses processing a sheet by performing one or more times of machining and obtains a product in a desired form from the sheet, and generates machining data for operating the sheet process apparatus, and the machining data generation apparatus 4 includes a machining condition input unit 51 that inputs a machining condition for obtaining the product in a desired form from the sheet; a data generation unit 8 that generates the machining data including each machining data piece for operating the sheet process apparatus in order to execute each process in the plurality of times of processes, on the basis of the input machining condition; and a data output unit 71 that outputs the generated machining data to the sheet process apparatus that executes each process.

An air-floating thin film bonding apparatus and its air-floating roller is provided. The apparatus is composed of an air-floating rollers, which can blow out airflow at a specific angle to be applied to the base film with three-dimensional obstacles. The positive pressure provided by the airflow can be utilized to fill the gap space caused by the three-dimensional obstacles. Therefore, the base film can bond to the bonding film tightly to overcome the wrinkles and defects caused by the three-dimensional obstacle and the problem of unflatness of the film-bonding can be solved.

An air-floating thin film bonding apparatus and its air-floating roller is provided. The apparatus is composed of an air-floating rollers, which can blow out airflow at a specific angle to be applied to the base film with three-dimensional obstacles. The positive pressure provided by the airflow can be utilized to fill the gap space caused by the three-dimensional obstacles. Therefore, the base film can bond to the bonding film tightly to overcome the wrinkles and defects caused by the three-dimensional obstacle and the problem of unflatness of the film-bonding can be solved.

Proposed is a friction shaft for a slitter that enables a winding pipe to stably roll unit materials formed by cutting a raw material, such as a raw fabric or film, with predetermined intervals, that can fix the rolling pipe even at a low pressure of compressed air, and that has a wide range of available rolling tension because the pressure range of compressed air that can adjust winding torque is wide.

A sheet flipping device includes a receiving member for receiving a sheet, a flipping volume being the volume which in operation is defined by the flipping movement of the sheet, and a flipping element for flipping the sheet around an axis of rotation within the flipping volume onto the receiving member. The sheet flipping device further includes an air vortex ring generator having an air vortex ring exit nozzle defining a translational direction of a generated air vortex ring when the generated vortex ring is in operation generated from the air vortex ring exit nozzle. The air vortex ring generator is mounted such that in operation the sheet is urged onto the receiving member by the air vortex ring during the flipping motion of the sheet through the flipping volume. A sheet stacking device and a printing apparatus include the sheet flipping device.

A sheet flipping device includes a receiving member for receiving a sheet, a flipping volume being the volume which in operation is defined by the flipping movement of the sheet, and a flipping element for flipping the sheet around an axis of rotation within the flipping volume onto the receiving member. The sheet flipping device further includes an air vortex ring generator having an air vortex ring exit nozzle defining a translational direction of a generated air vortex ring when the generated vortex ring is in operation generated from the air vortex ring exit nozzle. The air vortex ring generator is mounted such that in operation the sheet is urged onto the receiving member by the air vortex ring during the flipping motion of the sheet through the flipping volume. A sheet stacking device and a printing apparatus include the sheet flipping device.

A system for transporting a separator by using an air guide roller includes an air guide roller controller and an air guide roller configured to receive a control command from the air guide roller controller and to spray the air onto one surface of a separator when the separator travels.