Abstract: A fabric roll is produced by winding a fabric (4) around at least two reels, that are coaxially aligned, spaced from each other, and have a total length (L) that is less than the width (Wr) of said fabric roll (11).

Abstract: The present invention concerns a method for joining the ply of a reel of paper in depletion with the initial flap of a new reel, as well as an apparatus adapted for carrying out such a method. Thanks to the method according to the present invention, and to the apparatus suitable for carrying it out, the joining of the reels takes place without using gluing means, like for example the double-sided tape used in known methods, avoiding the relative drawbacks, the adhesion between the plies of the reels to be joined taking place by electrostatic attraction.

Abstract: A machine (1) includes an unwinding section (3) for unwinding parent reels (Ba, Bb) of web material (N), an unwinding section (3) for unwinding parent reels (Ba, Bb) of web material (Na, Nb), and at least one winding station (15). The winding station in turn includes a winding device (41, 51), to which a longitudinal strip (S) of web material is fed. In the winding station, a respective spool (B) of web material is formed. The winding station (15) further includes: a cutting device (81, 83) for the longitudinal strip (S), to cut the longitudinal strip (S) transversely, thus forming a tail edge, which remains on the spool (B) under formation, and a leading edge; and a holding device (85) for holding the leading edge of the longitudinal strip (S), to transfer the leading edge onto a tubular winding core (T) of a new spool to be wound.

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 winding apparatus for winding a web material onto an empty core and into a roll, having a winding drum for guiding the web material supported on a first side, and cutting device for cross-cutting the web material prior to winding of it onto an empty core. The winding apparatus has air nozzles for ejecting compressed air onto the first side of the web material near a free end of the web material. By ejecting a gas, which preferably could be compressed air, onto the free end of the web, the free end is blown towards the empty core which is rotated. When the free end of the web material comes into contact with the rotating empty core, due to the ejected gas/air, the web will easily be “caught” by the rotating empty core, even without tape or adhesive, and a smooth new roll of web material wound.

Abstract: A rapid tearing device of a strip in a rewinder for the winding of paper around a core (15) to produce a log (12), where said rewinder has a formation area of the log (12), for moving cores (15) forward into a channel (16) defined by a series of cradles (17) by an upper winding roller (18), the device having a blade (24), having the dimension of the width of the rollers (18, 19, 20), which can be moved by actuators (31, 35; 30, 22, 25) between a rest position and an engagement position on a core (15) when the core (15) is unloaded from said conveyor (13) by means of an introducer (34) and introduced into the channel (16) thus blocking, between core (15) and blade (24), the paper (11) which is being unwound.

Abstract: In a winder assembly, a turret assembly indexes first and second cores between winding and removal positions. A lay-on roll assembly includes a roller and moves between a retracted position and an engaged position wherein the roller and the core, or the work material wound onto the core, cooperate to form a nip. A cutter is provided for cutting a web of sheet-type work material being wound onto the core. An enveloper assembly is provided and includes a nipping pivot roller that can engage a cut edge of the work material and feed the cut edge into the nip formed between the roller forming part of the lay-on roll assembly and a fresh core thereby allowing the work material to wind around the core.

Abstract: A winder assembly is provided and includes two or more cores mounted for rotation on a turret assembly and a web of sheet-type work material is wound around a core. A lay-on roll assembly roller and a core cooperate to define a first nip. A transfer roll assembly includes a roller coupled for rotation to a rail such that the roller and a core cooperate to define a second nip. A cutting means for cutting the work material includes a traverse assembly having a work material guide means. During operation, after cutting work material, the turret assembly indexes a core into a winding position and the work material guide means is moved to the operating position such that the roller coupled to the rail causes the work material to be fed into the second nip and begin winding around the core.

Abstract: The present invention relates to a reeling apparatus (1) for fiber web by which fiber web may be wound to successive reels (4). The reeling apparatus has cutting devices (6) for cutting the web during a reel change, the cutting device being provided with at least one cutting head (6.2) disposed movable in a direction essentially transverse to the web direction to cut the web. A contactless web supporting arrangement (7) is been provided in operational connection with the cutting device to maintain the running of the web stable in a controlled manner during the cutting.

Abstract: A drum support arm supports a cutting drum with a sector cross section and a receiving drum with a circular cross section, and moves between a web winding changeover position for causing the receiving drum to contact a core and a spacing position for keeping the receiving drum away from the core. The guide roller moves between an approaching position for lifting a web from the receiving drum and a retracted position for causing the web contact a peripheral surface of the receiving drum. When the drum support arm moves to the web winding changeover position, the guide roller moves to the retracted position, and when the drum support arm moves to the spacing position, the guide roller moves to the approaching position. When the drum support arm is set to the web winding changeover position, the cutting drum rotates once to cut the web. A front end of the web formed by cutting is pressed against the core by the receiving drum and wound around the periphery of the core.

Abstract: An apparatus for forming a wound roll of discrete overlapping sheets of web from a supply of continuous web. The web preferably is passed around a nip roller that steers the web onto the surface of a take-up core. A knife assembly including a knife blade extended from a knife holder is driven by a traversing mechanism across the width of the web to cut the wound web on the core into discrete sheets, the extended height of the knife blade being preferably the exact thickness of the web. In transverse cutting by the knife of the web wound on the take-up core, the knife holder travels on the outer surface of the web, thus assuring that the knife blade extends just to the outer surface of the next inner convolution of web, thereby cutting the continuous web into sheets without damaging previously wound web convolutions.

Abstract: A method for knocking-off a web (12) round on a turret winder (10) by a knocking-off device (22) includes a pressure roller (24), in which the knocking-off device (22) and a coil (16) of the winder (10) are, through an abrupt relative movement, brought into a position in which the pressure roller (24) engages the periphery of the coil (16) and the abrupt movement is a pivotal movement (B) of the coil (16) about a pivotal axis that extends in parallel with the axes of rotation thereof.

Abstract: An apparatus and method for cutting and threading a sheet of material is described. The apparatus can facilitate the transfer of a sheet from a sheet forming machine to a processing machine, and can halt the feeding of sheet material to the processing machine. When the processing machine is ready to receive more sheet material, the apparatus cuts the sheet and feeds the newly formed sheet to the processing machine.

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 web winder of a turret winding type is provided with a first spindle secured to a first drive shaft. A second spindle is secured to a second drive shaft. Positions of the first and second drive shafts are changeable in the web winder. A changeover device changes over winding of a web wound about the first spindle to winding about the second spindle. A cutting drum is disposed on a first side with respect to a web path of the web, and has a cutter for cutting the web in a width direction thereof. A receiving drum is disposed on a second side with respect to the web path opposite to the first side. A drum support arm supports the cutting and receiving drums in a rotatable manner and in a manner of contacting drum peripheral surfaces of the cutting and receiving drums on each other.

Abstract: A tail turn-up assembly has a frame positioned upstream of a reel spool. A carriage is pivotally mounted to the frame by a four bar linkage. The carriage is pivotable, from a retracted position to an extended position. When the carriage is engaged with the reel spool, a pair of curved tracks are positioned so that arcs defined by the tracks have their centers coincident with the spool axis. A knife carriage rides on the curved tracks and is constrained to move circumferentially about the reel spool. An actuator on the carriage causes the knife carriage to traverse circumferentially about the reel spool. The knife carriage has a leading edge formed by a knife which tears through the a tail which is cut from the web when the knife carriage is moved on the curved tracks.

Abstract: A log multiprocessing apparatus winds a web material around a winding core to form a log. Once the log is about to be completed, the web material is severed to form a tail of the log, and a pattern including at least one glue layer is applied on the tail of the log. The log then is decelerated and the tail is pressed on the log to form a final sealed log of web material.

Abstract: A device for continuous winding of webs on winding shafts onto winding rollers consisting of arms supporting the winding shaft, a pressure roller that can be engaged on the winding shaft or winding core, a knife separating the web during the roller change, and of a charging electrode supplying the web start with an electrostatic charge, which attaches the web start, newly formed by the web cut, on the winding shaft. In order to always maintain the correct equal distance to the web supplied with the charge, the same is tracked in such a manner that the distance of the charging electrode to the web remains constant regardless of the diameter of the winding shaft.

Abstract: A web is wound onto a core (21) while supported by winding drums (11, 12). The web is cut by a cutting device (19), and a finished web roll (10) is removed by a transfer device (16). A new core (21) is moved to a space between the winding drums (11, 12), and the winding is stopped to remove the finished roll (10) and to start a new roll. The core is moved onto support of one winding drum and a support member (22) and held in place by the support member (22) until the movable winding drum (11, 12) has been moved to the starting position of winding.

Abstract: A device for continuous winding of webs on winding shafts onto winding rollers consisting of arms supporting the winding shaft, a pressure roller that can be engaged on the winding shaft or winding core, a knife separating the web during the roller change, and of a charging electrode supplying the web start with an electrostatic charge, which attaches the web start, newly formed by the web cut, on the winding shaft. In order to always maintain the correct equal distance to the web supplied with the charge, the same is tracked in such a manner that the distance of the charging electrode to the web remains constant regardless of the diameter of the winding shaft.

Abstract: Winder with a contacting roller (10), which can be placed against the periphery of a reel (14), characterized in that the contacting roller (10) is divided at least in two roller segments (46; 34), of which at least one (34) has an engaging mechanism (38, 40), with which it can be engaged and disengaged independently of a different roller segment (46).

Abstract: A method and apparatus for winding a continuously delivered film web onto successively delivered winding tubes with a rotatably drivable contact roller, a winding station, associated with the contact roller, for the winding tube for winding the coil, a winding preparation station for receiving a new winding tube and beginning to wind the film web, and a transverse-cutting device for cutting the film web crosswise between the winding station and the winding preparation station. Associated with the winding preparation station for the new winding tube are a charger for generating an electrostatic charge of the new winding tube and a blower device for subjecting the film web to a blown air stream aimed counter to the feeding direction of the film web.

Abstract: In winding up a sheet web coated with a tacky adhesive, a roll changing method is provided which obviates the necessity of applying an adhesive. When changing the sheet web from a full wind roll wound up on a turret winder to a new core tube, the new core tube is revolved in reverse to the rotational direction of the turret, the sheet is cut between the full wind roll now turned by the turret and the new core tube revolving in reverse to it at a winding location, the adhesive side of the end of the cut sheet in the running direction is pressed and attached to the surface of the new core tube under reverse revolution and concurrently, the attached sheet is folded back, and the sheet web continuing from it is wound onto the new core tube, with its adhesive side being a surface side.

Abstract: The instant invention relates to an apparatus for winding a web arriving from a conveyance direction, comprising: primary winding roll (3) and secondary driving means (2), switching means (4a, 4b) for switching the winding from the secondary means (2) to the primary winding roll (3), and cutting means (5) to cut the at least one web (1) between the primary winding roll (3) and the secondary driving means (2), wherein the switching means comprise diverting (4b) situated opposite to the primary winding roll (3) with respect to the at least one web (1), said diverting means being movable along a transverse direction (G) intersecting the conveyance direction (F) to entrain the at least one web (1) towards the primary winding roll (3), whereby the at least one web (1) is cut and caused to be wound on the primary winding roll (3). The invention also relates to a method for winding a web, especially using the apparatus of the invention as well as a double pantograph frame suited to be used with said apparatus.

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: A running web of sheet material (2) is wound onto a roll (8). An empty core (30) is arranged at a transfer position to receive the web when the roll (8) is completed. A wrap roller (20) is moved so as to draw the web upstream of the core (30) around a portion of the circumference of the core. A head assembly (40) of a cross-cut mechanism then advances, wrapping the web upstream of the core (30) around the core. A spring loaded blade (52) is then advanced so as to cut the web and to force the end of the web into the inrunning nip between the wrap roller and the core. The head assembly and the wrap roller are then withdrawn to their standby positions and the core (30) moved from the transfer position to a running position while the completed roll (8) is unloaded.

Abstract: In winding up a sheet web coated with a tacky adhesive, to provide a roll changing method obviating the necessity of applying adhesive. When changing the sheet web from a full wind roll wound up on a turret winder to a new core tube, the new core tube is revolved in reverse to the rotational direction of the turret, the sheet is cut between the full wind roll now turned by the turret and the new core tube revolving in reverse to it at a winding location, the adhesive side of the end of the cut sheet in the running direction is pressed and attached to the surface of the new core tube under reverse revolution and concurrently, the attached sheet is folded back, and the sheet web continuing from it is wound onto the new core tube, with its adhesive side being a surface side.

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: 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 method and apparatus of forming coreless rolls of pressure sensitive adhesive tape involves the use of a mandrel assembly having a specific circumferential tape supporting segment thereon for winding tape. The circumferential tape supporting segment has a tape engaging surface portion that, in a radial orientation, is compressible yet sufficiently stiff to support the tape as it is successively wound about the mandrel to form a tape roll, and that is sufficiently pliant to permit ready axial removal of a wound tape roll from the shaft. The innermost wrap of pressure sensitive adhesive tape about the mandrel is masked by an adhesive liner. That liner is formed from one portion of a liner/tab segment which had been applied to the tape previously, and prior to winding, the tape is severed, and the remainder of that liner/tab forms an end tab on the outermost end of the previously formed coreless tape roll.

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 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.

Abstract: A two-shaft linear motion type winder for winding up a sheet material, e.g. a film is provided, which can eliminate the occurrence of any mechanical loss by simplification of a transission device, shorten the path distance of the film upon roll changing, prevent the neck-in and wrinkling of the film and reduce vastly the roll changing cycle. It comprises at least a pair of upper-stage winding frames having holders for an upper winding shaft, suspended from an upper main frame to be slidingly movable back and forth in a given area; and a pair of lower-stage winding frames having holders for a lower winding shaft, disposed on a lower main frame to face upwards so as to be slidingly movable longitudinally in a given area.

Abstract: A web winding apparatus includes a frame support having a horizontal track arrangement; a first mandrel rotatably mounted at a first fixed position on the frame support above the track arrangement, for removably holding a core thereon; a second mandrel rotatably mounted at a second fixed position on the frame support above the track arrangement, for removably holding a core thereon; a motor drive for rotating the first and second mandrels; a carriage movable between first and second carriage positions along the track arrangement below the first and second fixed positions, respectively, for guiding a web onto the core on the first mandrel at the first carriage position and cutting the web thereat, and for guiding a web onto the core on the second mandrel at the second carriage position and cutting the web thereat, the carriage including a first support, first guide rollers mounted to the first support for riding along the linear track arrangement, second guide rollers mounted to the first support, a second sup