Abstract: A mandrel cupping assembly for releasably engaging unsupported ends of a plurality of mandrels is disclosed. The mandrel cupping assembly comprises a cupping arm turret having a cupping arm turret central axis, a mandrel cup cooperatively associated with each mandrel of the plurality of mandrels, and a first actuator.

Abstract: A mandrel cupping assembly for releaseably engaging the unsupported ends of a plurality of mandrels supported on a web winding turret assembly is disclosed. Each of the mandrels is driven in a closed mandrel path about a web winding turret assembly axis. The mandrel cupping assembly has a cupping arm turret with a cupping arm turret central axis, a cupping arm cooperatively associated with each mandrel of the plurality of mandrels, and a first actuator for disposing the cupping arm from a hold-open position to a hold-closed position. Each of the cupping arms is disposed radially about the cupping arm turret and is carried in a radial orbital path about the cupping arm turret central axis while disposed in either of the hold-open position or the hold-closed position.

Abstract: A core tube holding device comprising: a plurality of out-pushing members that are arranged side by side spaced apart in the axial direction, each having a pressing part; a connecting member for connecting the plurality of out-pushing members; a holding member that has at every position in the axial direction a pressed part corresponding to the pressing part, and that is disposed radially outward with respect to the plurality of out-pushing members; and an action unit adapted to exert a force for moving, to one side in the axial direction, a one end out-pushing member which, among the plurality of out-pushing members, is at an end on the one side; wherein: at least one from among the pressing parts and the pressed parts is formed in a tapered shape that spreads radially outward from the one side to the other side in the axial direction, and when the force for moving the one end out-pushing member acts thereon via the action unit, the one end out-pushing member moves to the one side while also pulling the othe

Abstract: A winder in which the jaws of the mandrel expand automatically by the weight of the reel, without introducing external energy. The winder has a mandrel of horizontal axis (A) whose jaws are expandable by means of links hinged to the end of a sliding pull rod and connected to the frame by a hinged connecting rod. The winder includes a rocker connected to the frame by a fixed pivot axis (D) and to the mandrel by the physical embodiment of the axis of rotation (A), the two axes (D, A) are parallel. The rocker moves the mandrel vertically between a raised loading position and a lowered use position under the weight of a reel and it brings about, simultaneously, sliding of the pull rod, automatic expansion of the jaws, and automatic clamping of the reel.

Abstract: A winder in which the jaws of the mandrel expand automatically by the weight of the reel, without introducing external energy. The winder has a mandrel of horizontal axis (A) whose jaws are expandable by means of links hinged to the end of a sliding pull rod and connected to the frame by a hinged connecting rod. The winder includes a rocker connected to the frame by a fixed pivot axis (D) and to the mandrel by the physical embodiment of the axis of rotation (A), the two axes (D, A) are parallel. The rocker moves the mandrel vertically between a raised loading position and a lowered use position under the weight of a reel and it brings about, simultaneously, sliding of the pull rod, automatic expansion of the jaws, and automatic clamping of the reel.

Abstract: A roll medium supporting apparatus includes: a base body portion to be inserted into a hollow shaft portion of a rolled medium; a plurality of contact supporting portions provided circumferentially of the base body portion so as to be capable of being displaced radially of the hollow shaft portion, having a plurality of predetermined positions within the displaceable range, and coming into contact with the inner peripheral surface of the hollow shaft portion and supporting the same; and a stabilizing mechanism configured to stabilize the contact supporting portions at the plurality of predetermined positions.

Abstract: A core adapter formed as a hollow cylindrical sleeve. A plurality of radial apertures are formed in the sleeve. Each radial aperture is perpendicular to the sleeve's axis. Studs are provided in each radial aperture, initially recessed beneath the sleeve's outer surface. The sleeve's outside diameter is sized for insertion into a 6-inch inside diameter core. The sleeve's inside diameter is the same size as a 3-inch inside diameter core. The adapter is inserted into a 6-inch core until it is flush with the end of the core. Wedge-tipped bars are driven beneath each of the adapter's longitudinally aligned rows of studs, against the bottom of each stud, thereby driving the studs perpendicularly away from the sleeve's axis into the core.

Abstract: A core adapter formed as a hollow cylindrical sleeve. A plurality of apertures extend through the sleeve, parallel to the sleeve's longitudinal axis. A plurality of radial apertures are formed in the sleeve for each longitudinal aperture. Each radial aperture is perpendicular to sleeve's axis and intersects a longitudinal aperture. Studs are provided in each radial aperture, initially recessed beneath the sleeve's outer surface. The sleeve's outside diameter is sized for insertion into a 6-inch inside diameter core. The sleeve's inside diameter is the same size as a 3-inch inside diameter core. The adapter is inserted into a 6-inch core until it is flush with the end of the core. Wedge-tipped bars are driven into each of the adapter's longitudinally aligned rows of studs, and against the bottom of each stud, thereby driving the studs perpendicularly away from the sleeve's axis into the core.

Abstract: A drive device for rotating a hollow element (31) comprises at least three pads (32) movable between a first position where the hollow element (31) can be threaded onto the device (30) and a second position where each pad (32) is moved radially in relation to an axis of rotation of the device (30). The device (30) further comprises a mechanism (33) for actuating the pads (32) in such a way that when a hollow element (31) is on the device (30), each pad (32) is at an approximately equal distance from the axis of rotation of the device (30).