摘要:
A device for winding webs of material onto winding shafts comprises a movable bearing supporting a winding shaft during winding, through which the supply roll being formed can be moved towards a contact roller and which can be moved in a position away therefrom for the removal of the completely wound supply roll. A new winding shaft accelerated approximately up to the speed of the web and onto which the cut leading end of the web can be wound, is inserted in the movable bearings. To prevent damage to the web, the weight of the supply roll is supported on the contact roller. The movable bearing is formed by two pairs of holding means, each pair of which can be moved synchronously with the other pair but also independently thereof. The pairs are adapted to hold a supply roll jointly as well as individually to hold a completely wound supply roll or a winding shaft with the leading end of the web wound thereon.
摘要:
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 surround the winding shaft (10 to 12, 10′ to 12′) in the closed position and are pivoted away therefrom in the open position.
摘要:
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).
摘要:
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. In the case of gap winding, the speed of the winding motor is controlled according to the measured tractive force of the web.
摘要:
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.
摘要:
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.
摘要:
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 surround the winding shaft (10 to 12, 10′ to 12′) in the closed position and are pivoted away therefrom in the open position.
摘要:
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.
摘要:
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.
摘要:
In apparatus for winding web material successively onto separate winding cores, the material is fed from a supply via a central guide roller to alternate winding assemblies carried by rotary frames. The apparatus has left- and right-hand rotary frames on opposite sides of the guide roller respectively and there are two winding assemblies on each frame. The winding assemblies can be moved along the frames in horizontal tracks, and the frames can be rotated so as to alternate the positions of the respective winding assemblies relative to the guide roller. The apparatus includes associated web cutters and slitters both for transverse cutting and lengthwise slitting of the web material so that full-width web rolls can be wound, or separate rolls can be wound from adjacent strips which have been slit longitudinally from the web.