Mandrel cupping assembly
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, at least three motion limiting devices disposed upon the cupping arms distal from the fulcrum, and a first actuator.
1. A mandrel cupping assembly for releaseably engaging unsupported ends of a plurality of mandrels disposed on a web winding turret assembly having a web winding turret assembly axis, each of said plurality of mandrels extending generally parallel to said web winding turret assembly axis, each of said mandrels being driven in a closed mandrel path about said web winding turret assembly axis, said mandrel cupping assembly comprising:
a cupping spider having a cupping spider axis;
a mandrel cup cooperatively associated with each mandrel of said plurality of mandrels, each of said mandrel cups being disposed radially about said cupping spider, each of said mandrel cups comprising a pair of cupping arms configured as a first-class double-lever with a pivot acting as a fulcrum;
wherein each of said mandrel cups releaseably engages said unsupported end of said mandrel, each of said mandrel cups having a hold-open position and a hold-closed position, each of said mandrel cups being carried in a radial orbital path about said cupping spider axis while disposed in either of said hold-open position or said hold-closed position;
a first actuator for disposing said cupping arms from said hold-open position to said hold-closed position; and,
a second actuator for disposing said cupping arms from said hold-closed position to said hold-open position.
2. The mandrel cupping assembly of claim 1 wherein disposing said cupping arms from said hold-open position to said hold-closed position further comprises engaging said cupping arms with said mandrel cooperatively associated thereto.
3. The mandrel cupping assembly of claim 1 wherein disposing said cupping arms from said hold-closed position to said hold-open position further comprises disengaging said cupping arms from said mandrel cooperatively associated thereto.
4. The mandrel cupping assembly of claim 1 wherein disposing said cupping arms from said hold-closed position to said hold-open position further comprises disengaging said cupping arms from said mandrel cooperatively associated thereto.
5. The mandrel cupping assembly of claim 1 wherein said cupping arms are indexably rotatable about said radial path.
6. The mandrel cupping assembly of claim 5 wherein said cupping arms are manually advanceable from a first position to a second position about said radial path.
7. The mandrel cupping assembly of claim 1 wherein said first actuator is fixably disposed upon a cupping arm support relative to said hold-open position.
8. The mandrel cupping assembly of claim 1 wherein said cupping arms cooperatively associated with each mandrel dwells in each of a plurality of positions about said cupping arm turret.
9. The mandrel cupping assembly of claim 8 wherein one of said plurality of positions provides for disposition of a core upon one of said plurality of mandrels when said cupping arms are disposed in said hold-open position.
10. The mandrel cupping assembly of claim 9 wherein a second of said plurality of positions provides for disposition of a web substrate upon said core when said cupping arms are disposed in said hold-closed position.
11. The mandrel cupping assembly of claim 10 wherein at least one of said plurality of positions provides for removal of said core and said web substrate disposed thereabout when said cupping arms are disposed in said hold-open position.
12. The mandrel cupping assembly of claim 1 wherein at least one of said cupping arms comprises a detent configured to engage said unsupported end of said mandrel cooperatively associated thereto.
13. The mandrel cupping assembly of claim 12 wherein said at least three motion limiting devices are configured to encircle said unsupported end of said mandrel cooperatively associated thereto when said ends of said cupping arms distal from said pivot are cooperatively engaged with said mandrel.
14. The mandrel cupping assembly of claim 13 wherein said motion limiting devices are bearings, said bearings being cooperatively engageable with said when said ends of said cupping arms distal from said pivot are cooperatively engaged with said mandrel.
15. The mandrel cupping assembly of claim 1 wherein said mandrel cup is capable of engaging said mandrel cooperatively associated thereto at any point within said closed mandrel path.
16. The mandrel cupping assembly of claim 1 wherein said mandrel cup is capable of disengaging from said mandrel cooperatively associated thereto at any point within said closed mandrel path.