Abstract: The rewinding machine includes a first winding cradle formed between a first winding roller, a second winding roller and a third winding roller. The first winding roller and the second winding roller define a nip through which there pass the winding cores with the web material being wound around them. The rewinding machine also includes a feed path of the winding cores that pass between the first winding roller and the third winding roller. A second winding cradle is formed between the first winding roller, the second winding roller and a fourth winding roller. The rewinding machine also includes a rolling surface extending around the first winding roller and defining a feed channel of the winding cores.

Abstract: A method for securing a web end of a paper web on a first drum during a change of drum, the method includes passing the web end through a nip between a Pope roller and the second drum and applying adhesive to an area of the web end on a downward-rotating area of the Pope roller after the web end is passed through the nip.

Abstract: Winder for an endless lane of a plastic web (2), with a revolving unit (6, 6?, 55, 90), which is constructed so as to be rotatable about its axis (16) and has at least two winding shafts (10 to 12, 10? to 12?) running parallel to its axis, onto which winding cores (17) can be loaded, then wound with the web (2) to a roll (18), finally unloaded therefrom again as finished rolls (18), wherein on both sides of the revolving unit (6, 6?, 50, 90) support arrangements are arranged, in which the winding shafts (10 to 12, 10? to 12?) are supported at their corresponding ends therein, and wherein the support for one end of the winding shafts (10 to 12, 10? to 12?) is constructed so as to be detachable, such that the respective winding shaft (10 to 12, 10? to 12?), with released support, can be loaded and unloaded from this end, characterized in that the detachably constructed support arrangements each have a gripper arrangement (36 to 38) with a two-armed scissor unit (39 to 41), the scissor arms (42, 43) of which sur

Abstract: An accompanying squeezing unit in a machine for winding plastic film onto bobbins, in which at least two spindles are positioned on a rotating plate around a central shaft constrained to an upright of the machine, the group including an accompanying squeezing roll situated on a lever mechanism which is selectively actuated to rotate-oscillate by actuators in order to maintain the squeezing roll positioned on a film in the final winding onto a bobbin positioned on one of the spindles, the lever mechanism being activated when the plate carrying the spindles is rotated to discharge a finished bobbin. The lever mechanism in the group includes two first levers and two second levers articulated relative to each other.

Abstract: An automatic positioning group in a machine for winding plastic film onto bobbins that determines the correct position of an operative oscillating element with respect to a core such as a bobbin of a film having a different diameter sizes, wherein the operative oscillating element is supported at first free ends of levers hinged on pins associated with a frame of the winding machine and oscillated by a related actuator. The levers extend, in an opposite position to the ends carrying the operative oscillating element into appendices which collaborate with at least one pair of abutments positioned on a respective cam rotated with respect to the frame by an actuator, wherein each of the abutments is positioned on the cam with a different radial dimension with respect to a rotation axis of the rotating cam. The operative oscillating element can consist of a contact roll or a cutting blade.

Abstract: A rewinding machine includes a drawing assembly (1), a winding assembly, a core-change assembly (5), and pneumatic elements for interrupting the continuity of the ply at the end of a winding cycle, and for starting a new winding cycle.

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: An apparatus for winding a flexible web continuously moving in a longitudinal travel direction as rolls onto sleeves has a winding station for holding a sleeve and rotating it about an axis for winding the web onto the sleeve. Upstream of the winding station at a changeover station a fresh sleeve is held adjacent the continuously moving web. A shell juxtaposed with the fresh sleeve in the changeover station forms therewith a gap. A cross-cutter for the web is provided adjacent an end of the gap and can form on the web a trailing end and a leading end so that the trailing end travels to the winding station for winding on the sleeve therein. Air is drawn air into the end of the gap to aspirate the leading end into the gap. This leading end is electrostatically adhered to the fresh sleeve in the changeover station.

Abstract: The rewinding machine includes: a winding unit; a feed path of the web material; an insertion path of the winding cores; a separator device to sever the web material upon completion of winding each log. The separator device is disposed and produced to be activated by passage of a winding core.

Abstract: A method is described for obtaining a coreless roll (R) of web material with a first portion of web material forming an inner nucleus (R1) of said roll and a second portion of web material (R2) wound around the outside of said nucleus. The two portions (R1, R2) can be separated from one another and, for said purpose, an interface or discontinuity is created in at least one turn of the web material forming the roll, between said inner nucleus and said second portion of web material, so as to facilitate the extraction of the inner nucleus from the outer portion of the roll.

Abstract: The invention provides an apparatus for winding material. The apparatus includes first and second roll carriages that are each configured to support a roll shaft. At least one of the first and second roll carriages is configured to be rotated by a drive member. The apparatus also includes an engagement roller displaceable from a first engagement roller position where the traveling roller is free of a web to a second, different engagement roller position where the traveling roller is configured to engage the periphery of a roll of web material that is at least partially wound about the roll, a traveling roller displaceable from a first traveling roller position to a second traveling roller position and a cutter where the cutter is configured to cut through the web after the first roll carriage moves from a first roll carriage position to a second roll carriage position.

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: The invention provides a method and an apparatus for winding material. The apparatus includes first and second roll carriages that are each configured to support a roll shaft. At least one of the first and second roll carriages is configured to be rotated by a drive member. The apparatus also includes an engagement roller displaceable from a first engagement roller position where the traveling roller is free of a web to a second, different engagement roller position where the traveling roller is configured to engage the periphery of a roll of web material that is at least partially wound about the roll, a traveling roller displaceable from a first traveling roller position to a second traveling roller position and a cutter where the cutter is configured to cut through the web after the first roll carriage moves from a first roll carriage position to a second roll carriage position.

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 sheet slitter winder that uses a sheet slitter to slit a wide sheet into a plurality of sheets of predetermined width, and winders to wind the slit sheets onto winding cores. Touch rollers contact the winding rolls. Temporary sheet-holding means have a sheet-retaining plate that can be contacted with and separated from the touch rollers and can temporarily hold a slit sheet against an outside peripheral surface of a touch roller at a point upstream of a point of contact between a touch roller and a roll. Cutting means are used to cut widthwise across the slit sheets thus held in place.

Abstract: A transverse cutting device for a continuously fed-in web of material which is wound onto sequentially positioned winding tubes, wherein the transverse cutting device includes a cutter block which can be displaced transversely with respect to the web of material and can be driven by a drive mechanism in the displacement direction, and in which a cutting blade for the transverse cutting of the web of material is held, wherein the cutter block has an applicator brush trailing the cutting blade, by which the leading edge of the web of material formed while being severed can be successively placed against the circumference of a waiting winding tube. Also, a winding device for winding a continuously fed-in web of material onto sequentially provided winding tubes is proposed, which has a transverse winding device.

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: The invention provides a method and an apparatus for winding material. The apparatus includes first and second roll carriages that are each configured to support a roll shaft. At least one of the first and second roll carriages is configured to be rotated by a drive member. The apparatus also includes an engagement roller displaceable from a first engagement roller position where the traveling roller is free of a web to a second, different engagement roller position where the traveling roller is configured to engage the periphery of a roll of web material that is at least partially wound about the roll, a traveling roller displaceable from a first traveling roller position to a second traveling roller position and a cutter where the cutter is configured to cut through the web after the first roll carriage moves from a first roll carriage position to a second roll carriage position.

Abstract: A winding or rewinding machine to wind a web material (N) and form a roll (R) around a winding spindle (13) is disclosed, comprising: at least a roller (5) in contact with said winding spindle in the initial phase of winding the web material around the spindle; a transverse cutting element (19) to cut the web material when a roll has been wound and form an initial free end to wind a subsequent roll around a new winding spindle. Moreover, at least an electrostatic bar (21) to electrostatically charge the web material is also provided. The roller (5) in contact with the spindle is made at least partially in non-electrically conductive material.

Abstract: A method and a device for winding a continuously arriving foil web into a coil on a winding shaft, having a rotatably driveable contact roller, a winding station assigned to the contact roller for the winding shaft for winding the coil, a take-up station for receiving a fresh winding shaft and taking up the foil web, a transverse cutting device between the winding station and the take-up station for transversely cutting the foil web, wherein a charging station for creating an electrostatic charge between the winding shaft and the foil web and a blower device are assigned to the take-up station for the fresh winding shaft.

Abstract: A rewinding machine for the production of logs of web material around a tubular core includes a first winding roller around which the web material is fed, a second winding roller forming a gap with the first winding roller, through which gap the core is inserted, and a third roller mounted movably to allow the diameter of the log to increase and the log to be discharged at the end of winding. A blade is carried by a rotating member which is pivoted on the axis of said first winding roller and protrudes from the profile of the roller. The blade rotates in the same direction as the first winding roller at different speeds, so as to undergo a deceleration or an acceleration when it is in contact with the web material in the winding space defined by the three rollers to cause severing of the web material at the end of winding.

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 method and a device for winding a continuously arriving foil web into a coil on a winding shaft, having a rotatably driveable contact roller, a winding station assigned to the contact roller for the winding shaft for winding the coil, a take-up station for receiving a fresh winding shaft and taking up the foil web, a transverse cutting device between the winding station and the take-up station for transversely cutting the foil web, wherein a charging station for creating an electrostatic charge between the winding shaft and the foil web and a blower device are assigned to the take-up station for the fresh winding shaft.

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: The invention is a centerwinder for receiving and winding web material sequentially on one of at least two fixed shafts. The two or more shafts are desirably positioned vertically to one another in a stationary structure and eliminate the need for a powered turret assembly. A lay-on roll assembly can be used that pivots in and out as well as up and down for serving the respective shaft locations. A cylinder linkage provides the same or constant force against the winding roll on either the upper or the lower shaft. Transfer rolls in desirable embodiments are automatically pivoted into the proper position for a fully automatic transfer or to assist the operator during a manual cut and transfer.

Abstract: A rewinding machine for the production of logs of web material around a tubular core includes a first winding roller around which the web material is fed, a second winding roller forming a gap with the first winding roller, through which gap the core is inserted, and a third roller mounted movably to allow the diameter of the log to increase and the log to be discharged at the end of winding. A blade is carried by a rotating member which is pivoted on the axis of said first winding roller and protrudes from the profile of the roller. The blade rotates in the same direction as the first winding roller at different speeds, so as to undergo a deceleration or an acceleration when it is in contact with the web material in the winding space defined by the three rollers to cause severing of the web material at the end of winding.

Abstract: A machine that has an assembly formed from a frame on which is rotatably mounted on a drum with parallel winding cores. This assembly is mounted so as to move translationally in a horizontal direction perpendicular to the axes of the drum and of the cores, while the sheet product feeding mechanism is fixed. The translational displacement of the movable assembly allows its gradual advance as the diameter of a reel being formed grows and also makes it possible to leave, between this assembly and the sheet product feeding mechanism, a gap available for an operator, for the purpose of introducing the leading edge of the sheet product onto one of the cores.

Abstract: In a cross cutting device for a winding machine having at least a first carrier roll (11) wrapped by the web to be wound and a second carrier roll, both carrier rolls forming a winding bed for at least one roll (13) to be wound around a winding core (14), particularly for winding paper in form of one web or several webs in parallel, a cross cutting device to cut through the web after completion of a roll (13) is formed near the front end of a support beam (24) being conductible through a clearance gap (G) between a first and second carrier roll into a cutting position of the cross cutting device which is located at or close to the surface of said first carrier roll (11). Said support beam (24) can be pressed by means of a finished wrapped roll (13) against said wrapped first carrier roll (11).

Abstract: Apparatus and process for winding a web onto a wound reel. The apparatus includes at least one king roll, at least one roll support unit, and a winding bed formed by the at least one king roll and the at least one roll support unit. A separating device includes a cutter located on a displaceable cutter holder, and support arms are swivelably coupled around a rotational axis of the at least one king roll. The support arms are coupled to the cutter holder. The process includes rotating the at least one king roll, such that the wind reel is rotatably driven, moving the cutter toward a gap between the at least one king roll and the at least one roll support unit, and rotating the cutter holder around the rotational axis of the at least one king roll. The process also includes pressing, with the cutter holder, the web against an outer circumference of the at least one king roll, and ejecting the reel from the winding bed, such that the web is separated along the cutter.

Abstract: The machine is equipped with a device for cutting the sheet to shift from one roll to another; the cutting device comprises a stand (3) on which a turret (2) has been mounted, said turret bearing at least two parallel spindles (1), each linked to rotating driving means known in the art; the rotation of the turret simultaneously removes a full roll and brings an empty spindle to the coiling station. A carriage (5) capable of motion perpendicular to the spindle axis conveys cylinders to load the machine with sheets to be rolled.

Abstract: A method is disclosed for winding a continuous web of material on a core mandrel, the winder comprising a cutter that actuates to provide a new end of web material. The cutter itself comprises a source of vacuum for creating an airflow around a new core mandrel between the mandrel and a guide wall which extends around at least one fourth of the mandrel surface, the airflow causing the new web end to follow the mandrel around and tuck said new end between the mandrel circumference and the tensioned web extending between the new mandrel and upstream equipment.

Abstract: An apparatus for continuously winding a web of sheet material into rolls comprises a turret mechanism (1) comprising two or more winding mandrels (2,3,4,5). The turret mechanism (1) is rotatably indexed to bring each mandrel (2,3,4,5) in turn into a winding position in which it is rotatably driven to wind a web of sheet material (8) connected thereto into a roll, and to bring the adjacent mandrel lying immediately behind it in the direction of rotation of the turret into contact with the web (8). The adjacent mandrel is rotatable. Rotary element (11) is adapted for selective engagement with the adjacent mandrel, which rotary element (11) is rotatably driven in the opposite direction to the adjacent mandrel and at a greater speed. The apparatus further comprises a web cutting mechanism (16) adapted to cut the web (8) at a point lying between the current rewind mandrel and the adjacent mandrel.

Abstract: An apparatus and method of winding a continuously moving web, and for splicing and transferring the web from a first core to a second core with no-fold-back or wrinkling of the web material during the splice. The web is fed through a first nip point and thereby applied to a lay-on roll, the lay-on roll further applying the web material onto first and second cores alternatively. An electrostatic charging bar positioned downstream from the nip point emits an electrostatic charge onto the web to temporarily adhere the web to the lay-on roll. A rotatable cutting knife cooperatively engageable with the lay-on roll cuts the web at a point downstream from the electrostatic charging bar but upstream from the first and second cores to produce a tail and new leading edge. The tail continues to be wound about the first roll, and the new leading edge is affixed to the second roll and the web is thereafter wound about the second core.

Abstract: Method and a device for winding web sections into web section rolls. The device for winding web sections into web section rolls comprises a central roll and a cutting section. The web section rolls rest against the central roll in at least two winding position groups that are axially offset from one another at different positions about the circumference of the central roll. The cutting device axially extends axially over the winding position groups, and is adapted for pivoting about the central roll through the winding position groups. The method of winding web sections into web section rolls comprises cutting a web section at the point where a web section roll contacts the central roll and transferring the cut web sections to new roll cores.