Abstract: The present invention relates to a device (1) for automatically cutting a material web (2) with a longitudinal cutting device (60) using a material web (2) in a longitudinal direction (L) separable in at least a partial web (3) and/or at least a remaining web (4), a discharging device (10) for automatically discharging the produced remaining web (4), a transverse cutting device (70) downstream of a longitudinal cutting device (60) for cutting the remaining web (4) transversely to the longitudinal direction (L).

Abstract: The present invention relates to a device (1) for automatically cutting a material web (2) with a longitudinal cutting device (60) using a material web (2) in a longitudinal direction (L) separable in at least a partial web (3) and/or at least a remaining web (4), a discharging device (10) for automatically discharging the produced remaining web (4), a transverse cutting device (70) downstream of a longitudinal cutting device (60) for cutting the remaining web (4) transversely to the longitudinal direction (L).

Abstract: The present invention relates to a device (1) for automatically cutting a material web (2) with a longitudinal cutting device (60) using a material web (2) in a longitudinal direction (L) separable in at least a partial web (3) and/or at least a remaining web (4), a discharging device (10) for automatically discharging the produced remaining web (4), a transverse cutting device (70) downstream of a longitudinal cutting device (60) for cutting the remaining web (4) transversely to the longitudinal direction (L).

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: The present invention relates to a method and a device for producing a roll (18) made of a material web (5) of flexible material which is guided via a contact roller (19) of a winder and is wound in the said winder to form a roll (18), wherein the contact roller (19) maintains contact with the roll (18) during winding and the wrap angle (?) of the material web (5) passing over the contact roller (19), as the former is progressively wound, is maintained throughout at a variable reference value predetermined for each winding. In this way the wrap angle (?) for the winding can be adapted to the respective composition of the material web (5), which improves the quality of the winding.

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 present invention relates to a device (1) for automatically cutting a material web (2) with a longitudinal cutting device (60) using a material web (2) in a longitudinal direction (L) separable in at least a partial web (3) and/or at least a remaining web (4), a discharging device (10) for automatically discharging the produced remaining web (4), a transverse cutting device (70) downstream of a longitudinal cutting device (60) for cutting the remaining web (4) transversely to the longitudinal direction (L).

Abstract: The invention describes a winding device (1) for the purpose of successively winding at least one material web (11), particularly a plastic film web, onto spools (7), comprising a machine frame (4) at least one wheel which is mounted on the machine frame in a manner allowing rotation, at least two winding points (5, 5?, 5?) for the purpose of carrying the spools (7), which are mounted in the wheel in a manner allowing rotation, of which a first (5?) can be brought into a winding position, and a second (5, 5?) can be brought into a loading and/or unloading position, At least one guard element (20) can be brought into the region between the two spools (5, 5?).

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: The present invention relates to a method and a device for producing a roll (18) made of a material web (5) of flexible material which is guided via a contact roller (19) of a winder and is wound in the said winder to form a roll (18), wherein the contact roller (19) maintains contact with the roll (18) during winding and the wrap angle (?) of the material web (5) passing over the contact roller (19), as the former is progressively wound, is maintained throughout at a variable reference value predetermined for each winding. In this way the wrap angle (?) for the winding can be adapted to the respective composition of the material web (5), which improves the quality of the winding.

Abstract: A winding device for winding up a web-like material has a roll core, on which the web-like material is wound up into a material roll, and a web guiding roller, which guides the web-like material before or when the web-like material reaches the roll core or the material roll, and a pressing element, which presses the web-like material onto the roll core or the roll after the web-like material already rests on the roll core or the roll. The pressing element is movable in relation to the roll core, and is mounted at both ends in lever arms forming a lever arm pair. The lever arms are mounted so as to be rotatable, and so that the pressing element is pivotable around bearing points of the lever arms.

Abstract: A cutting and transport roller for material webs includes media outlet openings in its peripheral surface to which varying pressure can be applied to control the seating pattern of the material web on the peripheral surface of the roller. The roller has a system of pressure feed lines by which the media outlet openings are connected to means for supplying the media. The roller has at least one pressure reservoir that is a part of the pressure feed line system and that can be connected by a valve to at least one part of the media outlet openings.

Abstract: A winding device (1) for winding up a web-like material (2), which comprises a roll core (5), on which the web-like material (2) may be wound up into a material roll, and a web guiding roller (3), which guides the web-like material (2) before or when it reaches the roll core or the material roll, and a pressing element (6), which presses the web-like material onto the roll core or the roll after it already rests on the roll core or the roll, the pressing roller being movable in relation to the roll core. The pressing element (6) is mounted at both ends in lever arms (12) forming a lever arm pair. The lever arms are mounted so they are rotatable, so that the pressing roller is pivotable around the bearing points (13) of the lever arms.

Abstract: The present invention relates to a device for winding up web-shaped material (35, 40, 41). This web-shaped material (35, 40, 41) is particularly film that is wound up on winding cores (7). The device for winding up web-shaped material (35, 40, 41) is equipped with at least one device for electrostatically charging (38, 42) the web-shaped material (35, 40, 41). Said device for electrostatically charging (38, 42) the web-shaped material (35, 40, 41) is arranged in such a manner with respect to the web-shaped material (35, 40, 41) and the winding core (7) that it exposes the web-shaped material (35, 40, 41) to an electrical field before it reaches the winding core (7).

Abstract: Device for continuous winding of webs onto winding shafts or winding cores to winding rollers, with a pressure roller supported in a frame that can be engaged on the winding shaft or winding core. This engagement is effected with limited friction and in a sensitive manner by means of a drive, with the pressure roller being supported on at least one steering rod that is pivot-connected to two guides, the other ends of which are pivot-supported in the frame.

Abstract: Cutting and transport roller (1) for material webs, that comprises of media outlet openings (14) in its peripheral surface (7) to which varying pressure can be applied to control the seating pattern of the material web on the peripheral surface (7) of the roller (1) and that comprises of a system of pressure feed lines (3, 4, 5, 11, 12, 13) by means of which the media outlet openings (14) are connected to means for supplying the media. The present invention differs from the prior art by at least one pressure reservoir (3, 4) that (3, 4) is a part of the pressure feed line system (3, 4, 5, 11, 12, 13) and that can be connected by a valve to at least one part of the media outlet openings. In the present invention, a process is introduced and claimed for controlling the seating pattern of a material web on the peripheral surface of a cutting- and transport roller (1). Said process can be implemented using the roller (1) in accordance with the invention.

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: Device for continuous winding of webs onto winding shafts or winding cores to winding rollers, consisting of arms supporting the winding shaft that, or a pressure roller that can be engaged on the winding shaft or winding core, or the forming winding roller, respectively, which is supported in a frame and with a knife separating the web during a roller change. In order to be able to engage the pressure roller with the winding core or winding roller in a low in friction and sensitive manner by means of a drive, the pressure roller is supported on at least one steering rod, which is pivot-connected to two guides, the other ends of which are pivot-supported in the frame.

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 device for winding a web, preferably a plastic film web produced in a blowing or casting process, includes a driven winding tube for a web, a web tension measuring roller, a driven contact roller positioned between the winding tube and the web tension measuring roller which, in the case of contact winding, can be positioned against the film roll being formed and which, in the case of gap winding, is positioned at a distance from the film roll. A control device controls the motors as a function of the feeding speed of the web and in accordance with the measured tractive force of the web, such that the coil hardness of the wound roll can be predetermined. In the case of contact winding, the torque of the winding motor is controlled according to the increasing diameter of the wound roll and the contact roller is driven at a speed that is controlled according to the tractive force of the web.