An apparatus includes a bi-modal roller configured to rotate about a longitudinal axis of the bi-modal roller. The bi-modal roller includes two ends and a rolling outer surface. The rolling outer surface is divided into a convex portion and concave portion. The concave portion includes at least one concave curve extending longitudinally between the two ends. The concave portion is configured to, when a film physically contacts the concave portion, affect translation of the film in response to a stick condition or a slip condition. The convex portion includes at least one convex curve extending longitudinally between the two ends. The convex portion is configured to, when the film physically contacts the convex portion, affect translation of the film in response to a stick condition or a slip condition.

A meandering correction apparatus includes a transport mechanism, an orientation measurement part, a Young's modulus calculation part, a meandering prediction part and a meandering correction part. The transport mechanism transports an elongated strip-shaped base material in a longitudinal direction thereof along a transport path. The orientation measurement part measures fiber orientations of the base material in respective measurement regions on the transport path, the measurement regions being different in widthwise position from each other. The Young's modulus calculation part calculates Young's moduli of the base material for the respective measurement regions, based on the fiber orientations. The meandering prediction part predicts subsequent meandering of the base material, based on the Young's moduli, to output meandering prediction information. The meandering correction part corrects the widthwise position of the base material, based on the meandering prediction information. The meandering correction is made based on the fiber orientations of the base material. Thus, the widthwise position of the base material is corrected without depending on only edge sensors.

A meandering correction apparatus includes a transport mechanism, an orientation measurement part, a Young's modulus calculation part, a meandering prediction part and a meandering correction part. The transport mechanism transports an elongated strip-shaped base material in a longitudinal direction thereof along a transport path. The orientation measurement part measures fiber orientations of the base material in respective measurement regions on the transport path, the measurement regions being different in widthwise position from each other. The Young's modulus calculation part calculates Young's moduli of the base material for the respective measurement regions, based on the fiber orientations. The meandering prediction part predicts subsequent meandering of the base material, based on the Young's moduli, to output meandering prediction information. The meandering correction part corrects the widthwise position of the base material, based on the meandering prediction information. The meandering correction is made based on the fiber orientations of the base material. Thus, the widthwise position of the base material is corrected without depending on only edge sensors.

An apparatus (20) for steering a web (22), including a web path having at least one steering roller (24) and an exit roller (26), each having a mount; wherein the steering roller(s) (26) each have an axis of rotation and wherein the mounts for the steering roller(s) (26) can pivot those axes with a total of two degrees of freedom. An array (30) comprising a plurality of sensors (30a) for monitoring the position of the web (22) is present connected to a controller so as to determine the position and angular orientation of the web (22). The controller adjusts the pivot(s) of the mount(s) so as to control the angular orientation and the lateral position of the web (22) at a particular point along the web path.

An apparatus (20) for steering a web (22), including a web path having at least one steering roller (24) and an exit roller (26), each having a mount; wherein the steering roller(s) (26) each have an axis of rotation and wherein the mounts for the steering roller(s) (26) can pivot those axes with a total of two degrees of freedom. An array (30) comprising a plurality of sensors (30a) for monitoring the position of the web (22) is present connected to a controller so as to determine the position and angular orientation of the web (22). The controller adjusts the pivot(s) of the mount(s) so as to control the angular orientation and the lateral position of the web (22) at a particular point along the web path.

The invention relates to a web guiding device (3) for guiding a material web (2), in particular a film web, with a first and a second frame element (31, 32), which are pivotably mounted on a first spindle (33) in respective first end areas (311, 321), are connected via a rotatably mounted web guide roller (34) in respective second end areas (321, 322) and are connected via a second spindle (35) which is connected to the first spindle (33) by means of a fixing element (37).

An apparatus adapted to examine a paper web includes a rotatable first bobbin, a rotatable second bobbin, and a first testing device. The first bobbin has a paper we wound thereabout that has transverse bands spaced apart along a length thereof. The second bobbin is arranged to receive the paper web from the first bobbin with a paper web path defined between the first and second bobbins. The first testing device is disposed along the paper web path and is arranged to nondestructively measure a diffusivity of one of the transverse bands of the paper web.

An apparatus adapted to examine a paper web includes a rotatable first bobbin, a rotatable second bobbin, and a first testing device. The first bobbin has a paper we wound thereabout that has transverse bands spaced apart along a length thereof. The second bobbin is arranged to receive the paper web from the first bobbin with a paper web path defined between the first and second bobbins. The first testing device is disposed along the paper web path and is arranged to nondestructively measure a diffusivity of one of the transverse bands of the paper web.

In order to enable adjustment of the inclination of a guide roller member with respect to a base body, this member is provided with a base body and a guide roller member that is secured to the base body and that determines the advancement direction for a prescribed tape. The guide roller member includes a base part and a rotating shaft that is secured to the base part. In relation to the base body, the base part comes into contact, simultaneously and on the same side as the rotating shaft, with: the leading ends of a plurality of screws that are passed through a plurality of screw holes penetrating the base body; and projecting parts that are connected to or have come into contact with the base part.

The present invention discloses a bead wire wrapper device and a wrapper method. The bead wire wrapper device comprises a rack body; the rack body is provided with a winding unit, an H-shaped wheel assembly, a paper cutting mechanism, a paper guiding mechanism and a rubber applying mechanism; the winding unit comprises a first winding shaft and a second winding shaft; the H-shaped wheel assembly comprises an H-shaped wheel and a drive unit driving the H-shaped wheel to rotate; the paper cutting mechanism is configured to cut off film materials directly or indirectly fed by the winding unit; the paper guiding mechanism comprises a motion mechanism, the motion mechanism is provided with an adsorption assembly and a pressing assembly, the adsorption assembly is configured to adsorb the film materials through negative pressure and send the cut-off tail ends of the film materials to the H-shaped wheel under the action of the motion mechanism, and the pressing assembly is configured to move to the H-shaped wheel under the action of the motion mechanism and press the film materials; and the rubber applying mechanism is configured to paste rubber strips to the film materials on the H-shaped wheel.