A fluid-driven apparatus continuously feeds fabric in open-width form. The apparatus is associated in combination with a tumbler processing the fabric. The apparatus includes a tubular duct, with a substantially rectangular transversal cross section, has boundary walls which delimit an internal cavity inside the duct. A manifold supplies gaseous fluid into the duct through an opening formed in the top or bottom wall of the duct. Ports for the fluid extend in a direction longitudinal to the duct, into and out of the cavity. The manifold abuts the opening to divide the duct into two distinct stretches delimited by the manifold and by the ports. The manifold includes a diverter for selectively directing the fluid towards one of the stretches of the duct. A portion of one of the duct stretches is divergent in shape, with a transversal cross section increasing from the manifold to the respective end port.

The invention relates to a device and a method for manipulating a fibrous web (10). The device comprises at least one blower (21A, 21B) provided with a flow-preventing element (24A, 24B) which is arranged to produce at least one blow (26A, 26B) substantially in the direction of the fibrous web (10), and a friction element (28) against which the fibrous web (10) is arranged to be pressed at least partially from the effect of said blow (26A, 26B) and flow-preventing element (24A, 24B) to apply a friction force resisting the motion of the fibrous web (10) to the fibrous web (10). According to the invention, the blow (26A, 26B) is directed substantially away from the friction element (28) and the friction element (28) comprises a surface profile which is arranged such that, from the effect of said at least one blow (26A, 26B), a continuous vacuum is created on the surface of the fibrous web (10) on the side of the friction element (28). Due to its intensified friction effect, the device according to the invention is applicable especially for board and, by means of it, it is possible to form e.g. an air cutting device in the tail-threading section of a board machine.

The invention relates to a device and a method for manipulating a fibrous web (10). The device comprises at least one blower (21A, 21B) provided with a flow-preventing element (24A, 24B) which is arranged to produce at least one blow (26A, 26B) substantially in the direction of the fibrous web (10), and a friction element (28) against which the fibrous web (10) is arranged to be pressed at least partially from the effect of said blow (26A, 26B) and flow-preventing element (24A, 24B) to apply a friction force resisting the motion of the fibrous web (10) to the fibrous web (10). According to the invention, the blow (26A, 26B) is directed substantially away from the friction element (28) and the friction element (28) comprises a surface profile which is arranged such that, from the effect of said at least one blow (26A, 26B), a continuous vacuum is created on the surface of the fibrous web (10) on the side of the friction element (28). Due to its intensified friction effect, the device according to the invention is applicable especially for board and, by means of it, it is possible to form e.g. an air cutting device in the tail-threading section of a board machine.

A web transport system for transporting a web of media along a web-transport path including a fluid bar for guiding the web of media, and a scavenger blade positioned downstream of the fluid bar. A liquid is pumped through holes in an exterior bearing surface of the fluid bar, thereby pushing the web of media away from the fluid bar. The scavenger bar includes a blade edge facing the first surface of the web of media, the blade edge being spaced apart from the first surface of the web of media by a gap distance. The scavenger blade removes at least some liquid from the first surface of the web of media as it passes by the scavenger blade, thereby reducing the amount of liquid that is carried along to portions of the web-transport path that are downstream of the scavenger blade.

A web transport system for transporting a web of media along a web-transport path including a fluid bar for guiding the web of media, and a scavenger blade positioned downstream of the fluid bar. A liquid is pumped through holes in an exterior bearing surface of the fluid bar, thereby pushing the web of media away from the fluid bar. The scavenger bar includes a blade edge facing the first surface of the web of media, the blade edge being spaced apart from the first surface of the web of media by a gap distance. The scavenger blade removes at least some liquid from the first surface of the web of media as it passes by the scavenger blade, thereby reducing the amount of liquid that is carried along to portions of the web-transport path that are downstream of the scavenger blade.

Some embodiments of this application provide a strip threading apparatus and a method for splicing a strip material by using the strip threading apparatus. The strip threading apparatus includes: a slide rail, where the slide rail is disposed along a conveyance path of the strip material; a slide rod apparatus, where the slide rod apparatus is detachably connected to the slide rail; and a traction body, where the traction body is slidable along the slide rail. This strip threading apparatus enables splicing of broken strip materials.

Some embodiments of this application provide a strip threading apparatus and a method for splicing a strip material by using the strip threading apparatus. The strip threading apparatus includes: a slide rail, where the slide rail is disposed along a conveyance path of the strip material; a slide rod apparatus, where the slide rod apparatus is detachably connected to the slide rail; and a traction body, where the traction body is slidable along the slide rail. This strip threading apparatus enables splicing of broken strip materials.

A web transport system for transporting a web of media along a web-transport path includes a fluid bar for guiding the web of media, and first and second fluid shields positioned proximate to first and second ends of the fluid bar. A liquid is pumped through holes in an exterior bearing surface of the fluid bar into a region between the web of media and the bearing surface of the fluid bar, thereby pushing the web of media away from the fluid bar. The fluid shields are positioned to redirect fluid that is ejected from the region between the web of media and the bearing surface of the fluid bar along the edges of the web of media.

A film feeding apparatus and a control method thereof are provided. The film feeding apparatus comprises a delivery head. A surface of the delivery head has an air suction region and an air blowing region, and the air suction region and the air blowing region respectively include an air hole; and by cooperation of air suctioning through the air hole of the air suction region and air blowing through the air hole of the air blowing region, a film is kept nearby the delivery head in a non-contact manner in the case that the delivery head adsorbs the film.

A web transport system for transporting a web of media along a web transport path in an in-track direction, including at least one non-contact web guide. The web guide includes a wall having a curved exterior surface, wherein the web of media travels around a bearing portion of the curved exterior surface from a web guide entry position to a web guide exit position, and a hollow interior containing a pressurized liquid. A first row of liquid ejection holes is provided in proximity to the web guide entry position having axes that are inclined toward a downstream direction, and a second row of liquid ejection holes is provided in proximity to the web guide exit position having axes that are inclined toward an upstream direction. The pressurized liquid flows through the liquid ejection holes to force the web of media away from the bearing surface of the web guide.