A deviation correction apparatus includes a width detecting apparatus configured to detect a width of a coating layer of an electrode plate, a processor communicatively connected with the width detecting apparatus and configured to determine a centerline position of the electrode plate based on the width of the coating layer, and a deviation correction mechanism configured to perform deviation correction for the electrode plate based on the centerline position of the electrode plate and a preset standard centerline position.

Unwinder of a thin ply product wound on a roll, of the type with automatic switching of the unwinding roll with a spare roll, said unwinder comprising—a first roll-holder assembly equipped with a first unwinding rod for a respective roll, on which the roll is adapted to be supported, and which has an axis of rotation transversal to the direction of movement of the ply unwound from the roll, —a second roll-holder assembly equipped with a second unwinding rod for a respective roll, on which the roll is adapted to be supported, said second rod being parallel to said first unwinding rod of the first roll-holder assembly, said second roll-holder assembly facing said first roll-holder assembly in an unwinding zone, wherein of said two roll-holder assemblies, one assembly holds the unwinding roll and the other assembly holds the spare roll to be switched, —a ply splicing assembly placed above said first and second facing roll-holder assemblies, —a ply accumulation unit to allow automatic switching between a roll being unwound in one said roll-holder assembly and a spare roll provided in the other roll-holder assembly, —a transversal position correction system for the side edges of the plies on the rolls present in said roll-holder assemblies.

A folding apparatus for a continuous web being fed in a plant for the production of hygienic absorbent articles and intended to be folded into a “V” or “U” shape in a first and in a second longitudinal portion according to a longitudinal folding line parallel to a feeding line of the continuous web comprises a folding section including a first and a second power-driven, movable suction belt and an adjusting system for adjusting a relative position of the longitudinal edges of the continuous web once it has been folded; the adjusting system is configured to adjust the position of the first belt and/or of the second belt depending on at least a first information sent by the first sensor to the computerised control unit.

A folding apparatus for a continuous web being fed in a plant for the production of hygienic absorbent articles and intended to be folded into a “V” or “U” shape in a first and in a second longitudinal portion according to a longitudinal folding line parallel to a feeding line of the continuous web comprises a folding section including a first and a second power-driven, movable suction belt and an adjusting system for adjusting a relative position of the longitudinal edges of the continuous web once it has been folded; the adjusting system is configured to adjust the position of the first belt and/or of the second belt depending on at least a first information sent by the first sensor to the computerised control unit.

A printing device includes: a substrate feed-out section; a substrate transport section; a storage which stores the width size of the substrate; a skew correction section including a skew sensor which detects the skew of the substrate, and adapted to correct the skew of the substrate with reference to an output of the skew sensor and the substrate width size stored in the storage; an image recording section which performs an image recording operation on the substrate; a first sensor which detects a width size-changed portion of the substrate upstream of the skew correction section with respect to the transport direction; and a controller. Upon the detection of the width size-changed portion, the controller stops the substrate skew correction while continuously transporting the substrate. After the width size-changed portion of the substrate reaches a reference position downstream of the skew correction section, the controller restarts the skew correction.

A printing device includes: a substrate feed-out section; a substrate transport section; a storage which stores the width size of the substrate; a skew correction section including a skew sensor which detects the skew of the substrate, and adapted to correct the skew of the substrate with reference to an output of the skew sensor and the substrate width size stored in the storage; an image recording section which performs an image recording operation on the substrate; a first sensor which detects a width size-changed portion of the substrate upstream of the skew correction section with respect to the transport direction; and a controller. Upon the detection of the width size-changed portion, the controller stops the substrate skew correction while continuously transporting the substrate. After the width size-changed portion of the substrate reaches a reference position downstream of the skew correction section, the controller restarts the skew correction.

Maintaining a level of tension on material as it is processed in a manufacturing operation assists in the processing of the material. The tension of the material as it is fed through a process station is maintained by a material sag portion, such as an unsupported portion of the material extending between a roll of the material and the process station. The formation of the sag portion and the loading of the material forming the sag portion are automated and adjusted with a system having a material storage retrieval system, a shuttle, a tensioning device, and/or a processing station.

A web transport control device having a plurality of rotary frame units each of which includes a carrier frame, a rotary frame parallel thereto and carrying an input roller and an output roller for a material web, and pivotably supported on the carrier frame, a web guiding system arranged such that each of the material webs is fed to one of the input rollers, deflected thereat and then deflected again at the output roller, wherein the rotary frame units are nested one in the other such that web sections of the webs that extend between respective input and output rollers are parallel to one another and the spacing between two neighboring web sections is not larger than the sum of diameters of the input and output rollers, and the input rollers are offset relative to one another in the direction parallel to the web sections.

The invention relates to a method and a vacuum-coating system (10) for coating a band-type material (11), in particular made of metal. For this, the band-type material (11) is moved, via a conveying section (12), in a transport direction (T) and is vacuum-coated within a coating chamber (14), in which a vacuum is applied. As seen in the transport direction (T) of the band-type material (11), at least one flatness optimization device (39) is arranged upstream of the coating chamber (14), through which flatness optimization device the band-type material (11) can be guided. In this way, a desired flatness is generated for the band-type material (11).

The invention relates to a method and a vacuum-coating system (10) for coating a band-type material (11), in particular made of metal. For this, the band-type material (11) is moved, via a conveying section (12), in a transport direction (T) and is vacuum-coated within a coating chamber (14), in which a vacuum is applied. As seen in the transport direction (T) of the band-type material (11), at least one flatness optimization device (39) is arranged upstream of the coating chamber (14), through which flatness optimization device the band-type material (11) can be guided. In this way, a desired flatness is generated for the band-type material (11).