Abstract: An assembly for entraining a cut end of a web in a fluid flow, the assembly comprising an arrangement for delivering a fluid flow proximal to an entrainment region where a web is cut. The assembly further has an arrangement for guiding the fluid flow and the entrained end of the web from the web entrainment region to a web delivery region.

Abstract: A winding device for successively winding at least one material web, particularly a plastic film web, onto spools. The winding device includes a machine frame, at least one wheel which is mounted on the machine frame in a manner allowing rotation, at least two winding points for carrying the spools, which are mounted in the wheel in a manner allowing rotation, of which a first winding point is positionable in a winding position, and a second winding point is positionable in a loading and/or unloading position, with at least one guard element that is pivotably positionable in a region between the spools respectively associated with the first winding point and the second winding point.

Abstract: The web winding apparatus is characterized in that the two web pressing members are formed such that upon swinging, the two web pressing members move towards an empty one of the two bobbins positioned at one side of the two web pressing members which has been backed away from the cutter and upon swinging, the one of the two web pressing members which has approached the cutter presses an end portion of the web which is to be cut by the cutter on the empty bobbin thereby to wind the end portion of the web on the empty bobbin.

Abstract: A web-chopping and sheet-winding apparatus comprising an unwinder for unwinding a supply roll of continuous flexible web which may be adhesive on at least one side. A knife roller including at least one fixed transverse knife blade extending from the surface is in nipped relationship with an anvil roller, the height of the knife blade being greater than the thickness of the web. The anvil and knife roller spacing is such that the knife blade extends just to the surface of the anvil roller, thereby chopping the continuous web into sheets as the anvil and knife rollers turn synchronously with the web passing therebetween. A tape core roller in nipped relationship receives the chopped sheets sequentially, the leading edge of each sheet being lifted from the anvil roller by any of a plurality of novel means.

Abstract: The machine comprises in combination: a winding cradle (7); an insertion member (29) to insert winding cores (A, A1) into said cradle; an ejector (39) to eject the logs formed from said cradle (7) causing them to roll on an unloading chute (41); a severing device (55, 53) to sever the web material after ejection of the log from said cradle. Disposed along the unloading chute is an aperture (43) elongated in a direction transverse to the direction in which the log is unloaded along said unloading chute. Moreover, the severing device (53, 55) includes a movable element (55) that is inserted into said aperture (43) to cause severing of the web material between the cradle and the finished log.

Abstract: A winding device for winding a material web into a roll includes a roll carrier with at least two driven roll support members which are each movable between a winding position and an exchange position, a transfer device and a contact pressure device. The roll support members can be driven in two different directions of rotation. A first material web path is provided at the end of which the material web travels in a first direction onto the roll and a second material web path is provided at the end of which the material web travels in a second direction onto the roll. The transfer device includes a first cutting device which is movable from a first side into the material web and a second cutting device which is movable from a second side into the material web.

Abstract: The rewinding machine for the formation of logs (L) of web material (N) wound on a core (A), includes a first winder roller (15) around which the web material (N) is fed, and a second winder roller (17) forming, with the first winder roller, a nip (19) through which the core (A) and the web material (N) pass. A web material-severing device (43) cooperates with the first roller (15). Located upstream of the nip (19), with respect to the direction of movement of the web material (N), is a surface (33) defining, with the roller (15), a channel (39) into which the core (A) is inserted. A conveyor (47; 57; 67) introduces a core into the channel (39). The material-severing device (43) cooperates with the roller (15) along the channel (39) between the region of insertion of a new core and the nip (19).

Abstract: A change device of a reel-up in placed in the reel-up of a paper web in connection with the reel spool (2) forming the core of a new roll and located against the web (W) running onto the old roll (R). The change device comprises a guiding device (3) which is provided with nozzles or the like which are positioned and directed with respect to the reel spool (2) in such a way that they direct air jets (S) to the new end of the web following the cut-off point of the web (W) substantially over the full width of the web, to guide the web around the reel spool (2).

Abstract: A winding device for winding a material web into a roll includes a roll carrier with at least two driven roll support members which are each movable between a winding position and an exchange position, a transfer device and a contact pressure device. The roll support members can be driven in two different directions of rotation. A first material web path is provided at the end of which the material web travels in a first direction onto the roll and a second material web path is provided at the end of which the material web travels in a second direction onto the roll. The transfer device includes a first cutting device which is movable from a first side into the material web and a second cutting device which is movable from a second side into the material web.

Abstract: Process and device for continuously winding a plurality of longitudinally cut paper webs at machine speed by using a device that includes support rollers and at least one pair of disks associated with each of the support rollers, such that the at least one pair of disks is arranged concentrically with and rotates independently of, its associated support roller. The at least one pair of disks includes a first winding device having a first cardboard tube disposed thereon and a second winding device having a second cardboard tube disposed thereon, such that each of the support rollers include at least one of the pair of disks, which are concentrically arranged with and which rotate independently of the support rollers.

Abstract: A web transfer and chop-off assembly for a paper web rewinder used in a paper converting operation capable of maintaining positive control of the web at all times. The web transfer and chop-off assembly delivers a web to an empty core faced with glue and supported on a mandrel of a web winding turret assembly, at about the same time the web is severed from a fully wound core supported on a second mandrel on the turret assembly.

Abstract: A web transfer and chop-off assembly for a paper web rewinder used in a paper converting operation capable of maintaining positive control of the web at all times. The web transfer and chop-off assembly delivers a web to an empty core faced with glue and supported on a mandrel of a web winding turret assembly, at about the same time the web is severed from a fully wound core supported on a second mandrel on the turret assembly.