Abstract: The invention relates to a spool for winding a fibrous web, the lateral surface of which is formed by a coated spool core. The aim of the invention is to improve the winding quality by the fact that the outer lateral surface is formed by a plurality of separate coatings which are arranged axially next to one another, of which at least two adjacent coatings are made of different materials.

Abstract: The invention relates to a spool for winding a fibrous web, the lateral surface of which is formed by a coated spool core. The aim of the invention is to improve the winding quality by the fact that the outer lateral surface is formed by a plurality of separate coatings which are arranged axially next to one another, of which at least two adjacent coatings are made of different materials.

Abstract: A feature of a pressure roll or a continuous pressure belt for the formation of a reeling nip using a parent roll in a reel-up for the reeling up of a material web, in particular paper web or paperboard web, is that the roll surface or, respectively, belt surface adjacent to the reeling nip has helical, an at least single-start groove, the depth of which is in the range from about 0.4 mm to about 1.5 mm, and the maximum width of which is in the range from about 35 to 60 mm.

Abstract: The invention relates to an element for forming a leading end of a web from a running material web, especially a paper or board web, having a certain width (B). The invention comprises an element which has a smaller width (BM) that the width (B) of the material web, and in that the element is embodied in such a way that a new leading end of a web is formed at the latest after said element as been introduced into a nip formed by a winding cylinder and the winding core, and is partially covered by the material web. The invention also relates to a method for forming a leading end of a web from a running web material web, especially a paper or board web, applied to a winding core, whereby at least one element is used according to the invention.

Abstract: A feature of a pressure roll or a continuous pressure belt for the formation of a reeling nip using a parent roll in a reel-up for the reeling up of a material web, in particular paper web or paperboard web, is that the roll surface or, respectively, belt surface adjacent to the reeling nip has helical, an at least single-start groove, the depth of which is in the range from about 0.4 mm to about 1.5 mm, and the maximum width of which is in the range from about 35 to 60 mm.

Abstract: Method of transferring a moving web a new core wherein the method includes introducing at least one initial cutting piece between the moving web and a winding roll in such a way that a region of the at least one initial cutting piece remains uncovered by the moving web, connecting the at least one initial cutting piece to the new core, the connecting utilizing at least a temporary connection and occurring in the region of the at least one initial cutting piece which remains uncovered by the moving web, and cutting the moving web to form a new web start at least one of before the nip and before the moving web is wound onto the new core, wherein the connecting connects a new web start to the new core and thereafter allows the moving web to be wound onto the new core. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: Method of transferring a moving web a new core wherein the method includes introducing at least one initial cutting piece between the moving web and a winding roll in such a way that a region of the at least one initial cutting piece remains uncovered by the moving web, connecting the at least one initial cutting piece to the new core, the connecting utilizing at least a temporary connection and occurring in the region of the at least one initial cutting piece which remains uncovered by the moving web, and cutting the moving web to form a new web start at least one of before the nip and before the moving web is wound onto the new core, wherein the connecting connects a new web start to the new core and thereafter allows the moving web to be wound onto the new core. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: Process and apparatus for threading a material web onto a reel. The process includes guiding a leader strip of the material web over at least a part of a circumference of a support drum, guiding the leader strip through an effective region of a guide device toward a waste receptacle, widening the leader strip to a desired width of the material web, placing a reel against the support drum, thereby forming a nip, cutting the material web, and winding the material web onto the reel, thereby forming a wound roll. The apparatus includes a support drum adapted to be at least partially wound around by at least a leader strip of the material web, one of a reel and a wound roll positionable against said support drum to form a nip during a winding process, a waste receptacle positioned after the support drum in a web travel direction, and at least one guide device positioned between the support drum and the waste receptacle.

Abstract: Process and winding machine for winding a continuous material web on a reel spool forming a wound reel. The process includes, upon attaining a desired roll diameter in an old wound reel, closing a new winding nip between a reeling drum and a new reel spool brought into a standby position. In this regard, the reeling drum and the old wound reel are jointly displaced while maintaining the old winding nip formed between the reeling drum and the old wound reel. After the closing of the new winding nip between the reeling drum and the new reel spool, the linear load in the new winding nip is adjusted, controlled or regulated by a corresponding displacement and tightening of the reeling drum.

Abstract: A method is provided using a winder to afford precise adjustment, preferably control of the progression of line force between the reel drum and the wound roll despite unevenness in the surface contour of the wound roll, and ensures that no air entrapment occurs between the individual layers in the wound roll. Further, the “wound in” web tension is maintained during the entire winding process.

Abstract: Process and winding machine for winding a continuous material web on a reel spool forming a wound reel. The process includes, upon attaining a desired roll diameter in an old wound reel, closing a new winding nip between a reeling drum and a new reel spool brought into a standby position. In this regard, the reeling drum and the old wound reel are jointly displaced while maintaining the old winding nip formed between the reeling drum and the old wound reel. After the closing of the new winding nip between the reeling drum and the new reel spool, the linear load in the new winding nip is adjusted, controlled or regulated by a corresponding displacement and tightening of the reeling drum.

Abstract: Linear drive apparatus and process of using the same. The apparatus includes a movable device and a first high-speed thrust device coupled to the movable device. The first high-speed thrust device exerts an acceleration force on the movable device to move the movable device from a ready position. A movable retaining device is coupled to the movable device, so that the retaining device is adapted to hold the movable device in the ready position against the acceleration force. A release of the movable retaining device triggers immediate movement of the movable device via the acceleration force. The process includes positioning the movable device in an idle position, holding the movable device in the idle position with the retaining device, exerting an acceleration force on the movable device while it is being held in the idle position, and releasing the movable device from the idle position by moving the retaining device. In this manner, the acceleration force moves the moving device.

Abstract: Process and apparatus for cutting a running material web in which the material web is wound onto several winding cores in succession, such that winding of the material web onto a new winding core begins after a predetermined diameter has been attained in a wound roll formed on an old winding core. The process includes moving the new winding core between a winding roll and the wound roll, such that the material web is fed onto the wound roll from the winding roll. The process further includes forming a nip between the new winding core and the winding roll, positioning at least one cutting device one of in a region between the wound roll and the nip and in a region upstream of the winding roll relative to a web run direction, and moving the at least one cutting device relative to the material web in a plane substantially parallel to the material web. In this manner, the running material web can be completely cut.

Abstract: Process and apparatus for winding a material web. The process includes guiding the material web over a carrying roll and through a nip formed between the carrying roll and a new reel spool, at least partially cutting the material web with at least one contactless cutter during a reel spool change to form a new web leader, and additionally cutting the material web with at least one separation element. The apparatus includes a reel spool, and a carrying roll. The reel spool and the carrying roll may be positioned to form a winding nip. The material web may be guided over the carrying roll and through the winding nip, at least one contactless cutter can be adapted to cut a web leader during a reel spool change, and at least one separation element can be positioned for additionally cutting the material web.

Abstract: A method is provided using a winder to afford precise adjustment, preferably control of the progression of line force between the reel drum and the wound roll despite unevenness in the surface contour of the wound roll, and ensures that no air entrapment occurs between the individual layers in the wound roll. Further, the “wound in” web tension is maintained during the entire winding process.

Abstract: A reeling machine for winding a web, in particular a paper or cardboard web, for the formation of a wound web roll on a reel-spool, with a reeling drum, which forms a winding nip with the wound web roll and with at least one separating mechanism, which separates the web in a separating area. In the reeling machine, the separating mechanism is advanced before the separating process--as seen in vertical direction--from above to the separating area, which lies at a short distance to the outer periphery of the new reel-spool and/or--as seen in run direction of the web--to the winding nip between the reeling drum and the new reel-spool.

Abstract: A winding machine for a continuous web includes at least two support rollers defining a bed for the wound web. At least one roller has a rotatable, perforated roller shell. A stationary pressure box disposed inside the roller shell which is opened toward the inner surface of the perforated shell and is connectable to a source of pressure air. A further longitudinally extending packing closes the bottom of the gap between the first and second rollers. Longitudinal packings at the pressure box define a pressure zone extending approximately from the further packing to the place where the round roll lies on the one support roller. A suction zone is defined at the support roller upstream in the direction of roll shell rotation from the pressure zone. A grid of walls along the pressure zone in the pressure box define axially shorter length individually pressurizable zones connectable to a pressure source. In an alternate embodiment, three support rollers define two roll beds.

Abstract: A web winding machine includes two roll beds each formed of two roll support rollers. Each bed receives a respective web roll being wound thereon. The web rolls are at separate locations across the width of the machine. For at least one roll bed, a longitudinally extending packing is introduced from below into the gap between the two support rollers of the bed. A respective movable packing element is at the end of each wound roll and forms a packing gap with the wound roll and with the wall surfaces of the support rollers to enclose a pressure space. A compressed air cushion can be built up below the wound roll in the bed. At least one of the rollers of the roll bed has a perforated roller shell. A stationary pressure chamber inside the shell delivers pressure through the shell into the pressure space. The pressure chamber in the shell can be divided into sections along the axis of the roller. The pressure chamber is adapted to be connected to a source of compressed air.