Take-up cores for flexible materials and methods

1. A take up reel, comprising:

a core having a generally open interior and an outer surface that is adapted to hold a sheet-like material that is wound around the core, wherein the core defines at least one slot;

a slider member that is slidable within the slot between a home position and an extended position away from the outer surface, wherein when the sheet-like material is wound around the outer surface of the core when the slider member is in the extended position, the sheet-like material is spaced apart from the core in the region of the slot, and wherein when the slider member is moved to the home position, tension in the wound sheet-like material is reduced to facilitate removal of the core; and

a pair of ends coupled to the core, wherein each of the ends includes an extension that extends into the interior and holds the slider member in the extended position when the end is coupled to the core, and wherein the slider member is movable to the home position when the ends are uncoupled from the core.

2. A reel as in claim 1 , further comprising a spacer extending across the interior of the core, the spacer maintaining the slot in a desired orientation.

3. A reel as in claim 1 , further comprising a pin and a hole formed in the slider member, wherein the pin extends into the hole and across the interior to hold the slider member in a desired orientation.

4. A reel as in claim 1 , wherein the slider member comprises a nylon block.

5. A reel as in claim 1 , wherein the core has ends with at least one notch, and wherein the end members include detents that fit within the notch when the end members are coupled to the core.

6. A reel as in claim 1 , wherein the core comprises a cylindrical member.

7. A reel as in claim 1 , wherein the sheet-like material comprises a foil.

8. A foil tipping machine, comprising:

a foil reel containing a length of foil;

a tipping module that is configured to take a card and transfer foil from the length of foil onto the card;

a take up reel that is adapted to receive the length of foil from the tipping module, wherein the take up reel comprises:

a core having a generally open interior and an outer surface that is adapted to hold the length of foil that is wound around the core, wherein the core defines at least one slot;

a slider member that is slidable within the slot between a home position and an extended position away from the outer surface, wherein when the length of foil is wound around the outer surface of the core when the slider member is in the extended position, the length of foil is spaced apart from the core in the region of the slot, and wherein when the slider member is moved to the home position, tension in the wound length of foil is reduced to facilitate removal of the core; and

a pair of ends coupled to the core, wherein each of the ends includes an extension that extends into the interior and holds the slider member in the extended position when the end is coupled to the core, and wherein the slider member is movable to the home position when the ends are uncoupled from the core.

9. A machine as in claim 8 , further comprising a spacer extending across the interior of the core, the spacer maintaining the slot in a desired orientation.

10. A machine as in claim 8 , wherein the slider member comprises a nylon block, and further comprising a pin and a hole formed in the slider member, wherein the pin extends into the hole and across the interior to hold the slider member in a desired orientation.

11. A machine as in claim 8 , further comprising a cutter to cut the length of foil prior to reaching the take up reel.

12. A machine as in claim 8 , wherein the core has ends with at least one notch, and wherein the end members include detents that fit within the notch when the end members are coupled to the core.

13. A machine as in claim 8 , wherein the core comprises a cylindrical member.

14. A machine as in claim 8 , wherein the sheet-like material comprises a foil.

15. A method for winding a sheet-like material on a take up reel and then removing the sheet-like material from-the reel, the method comprising:

providing a reel comprising a core having a generally open interior and an outer surface, wherein the core defines at least one slot, and a slider member that is slidable within the slot between a home position and an extended position away from the outer surface;

coupling a pair of end members to the core, with each end member having an extension that holds the slider member in the extended position;

winding the sheet-like material around the core while the slider member is in the extended position, with the sheet-like material being spaced apart from the core in the region of the slot;

moving the slider member to the home position to release tension in the wound sheet-like material; and

removing the sheet-like material from the core.

16. A method as in claim 15 , further comprising removing the end members prior to removing the sheet-like material from the core to permit the slider member to move to the home position.

17. A method as in claim 15 , further comprising maintaining a desired spacing in the slot with a spacer disposed in the interior of the core.

18. A method as in claim 15 , further comprising sliding the slider member over a pin that is positioned in the interior of the core.

19. A method as in claim 15 , further comprising cutting the sheet-like material before being wound onto the take up reel.

20. A method as in claim 15 , further comprising feeding the sheet-like material from a holding reel.

21. A method as in claim 15 , further comprising transferring foil from the sheet-like material to a card prior to winding the sheet-like material around the core.