Separating device for winding devices for material webs, longitudinally divided into several partial webs

A device for laterally separating a plurality of traveling partial webs which have been slit longitudinally in a web of material, such as paper, to be wound into corresponding web rolls on a winding apparatus, the device having two rolls which are disposed to rotate substantially parallel with one another, the rolls each having a cylindrical surface bowed to form a crown having a crown vector, the crown vectors of the two rolls extending in substantially parallel planes, but extending in opposed directions, such that the partial webs are separated laterally a predetermined distance from one another when the partial webs pass over the bowed surface on one, upstream roll and such distance is maintained when the partial webs ass under the bowed surface of the other, downstream roll, comprising, in combination:

• a stand
• a support frame pivotally mounted about an axis in the stand so as to be capable of rotating about the axis parallel to the plane of the traveling web and to be fixed at a predetermined angular position, as desired;
• the rolls rotatably mounted in the support frame in spaced, parallel adjacency, each roll mounted on one side of the pivot of the support frame;
• roll controlling means operatively associated with each roll, the support frame and the stand, the roll controlling means including a first roll turning means mounted on each roll for positioning each roll to selectively position the roll crown vector, the roll controlling means further including a second roll turning means fixedly mounted to the stand relative to the support frame in operative association with the first roll turning means;
• the first roll turning means comprises a first gear wheel attached to each roll for angularly turning each roll about the axis of rotation of the roll;
• the second roll turning means comprises a second gear wheel fixedly mounted to the stand for each first gear wheel and coaxially with the rotational axis of the support frame;
• looped means extending between each of the first and second sets of gear wheels for linking said gear wheels such that pivotal movement of the support frame causes the rolls and the associated crown vectors of said rolls to pivot about the axes of rotation of the rolls while the crown vectors remain parallel and positioned at desired locations;
• whereby, turning movement of the support frame about the support frame axis selectively moves each roll equally angularly relative to the stand and rotationally about the axis of rotation of each roll in a direction opposite to the direction of the support frame so as to maintain the crown vectors parallel and positioned relative to the traveling webs through the roll control means as desired.

A device for laterally separating a plurality of traveling partial webs which have been slit longitudinally in a web of material, such as paper, to be wound into corresponding web rolls on a winding apparatus, the device having two rolls which are disposed to rotate substantially parallel with one another, the rolls each having a cylindrical surface bowed surface to form a crown having a crown vector, the crown vectors of the two rolls extending in substantially parallel planes, but extending in opposed directions, such that the partial webs are separated laterally a predetermined distance from one another when the partial webs pass over the bowed surface on one, upstream roll and such distance is maintained when the partial webs pass under the bowed surface of the other, downstream roll, comprising, in combination:

• a stand;
• a support frame pivotally mounted about an axis in the stand so as to be capable of rotating about the axis parallel to the plane of the traveling web and to be fixed at a predetermined angular position, as desired;
• the rolls rotatable mounted in the support frame in spaced, parallel adjacency, each roll mounted on one side of the pivot of the support frame;
• roll controlling means operatively associated with each roll, the support frame and the stand, the roll controlling means including a first roll turning means mounted on each roll for positioning each roll to selectively position the roll crown vector, the roll controlling means further including a second roll turning means fixedly mounted to the stand relative to the support frame in operative association with the first roll turning means;
• the first roll turning means comprises a first gear wheel attached to each roll to rotate with the roll about the axis of rotation of the roll;
• the second roll turning means comprises a second gear wheel for each first gear wheel, each second gear wheel fixedly mounted to the stand concentric about the support frame axis of rotation;
• the roll control means further includes a third gear wheel for each first and second gear wheels, each third gear wheel rotatably mounted relative to the support frame to move therewith, the third gear wheel operatively engaging the first and second gear wheels for each roll;
• p1 whereby turning movement of the support frame about the support frame pivot axis causes the first, second and third gear wheels for each roll to operatively engage to cause the crown vectors to turn substantially equally about the axes of roll rotation while remaining parallel to one another at desired crown vector locations.