System and method for applying tubular bands to containers utilizing angled band ejection
A machine for applying a tubular band to a container moving in a feed direction includes a mandrel assembly about which tubular film is passed. The mandrel assembly is configured to eject tubular bands in an angular direction or orientation that is partly against the feed direction.
1. A machine for applying a tubular band to a container moving in a feed direction, the machine including:
a mandrel assembly about which tubular film is passed, the mandrel assembly includes a central tooling axis and a lower output end;
a film cutter positioned for cutting the tubular film into a tubular band sized for application to a cap and neck section of the container;
a band ejection arrangement associated with the lower output end of the mandrel assembly, wherein the band ejection arrangement includes a tooling segment having a first side facing against the feed direction and a second side facing in the feed direction, a roller wheel protruding from the first side of the tooling segment and a chamfer at the second side of the tooling segment, wherein the chamfer angles against the feed direction when moving downward along the tooling segment, such that, as the tubular band moves downward over the tooling segment, a first side portion of the tubular band contacts and moves over the roller wheel causing the tubular band to tilt relative to the central tooling axis so as to facilitate ejection of the tubular band in an eject direction that is at a non-zero angle relative to the central tooling axis.
2. The machine of claim 1 , wherein the roller wheel is a free-spinning wheel.
3. The machine of claim 1 , further comprising a guide positioned alongside the tooling segment, the guide including a chamfer that aligns with the chamfer of the tooling segment to form an angled guide channel for the second side portion of the tubular band.
4. The machine of claim 3 , wherein the chamfer of the guide and the chamfer of the tooling segment each include an upper end that is located at a height above a height of a top of a perimeter of the roller wheel for causing the second side portion of the tubular band to move toward the first side portion of the tubular band before the first side portion contacts the roller wheel.
5. The machine of claim 3 , further comprising an air ejector oriented to blow air down and into the tubular band as the tubular band is ejected in the eject direction.
6. The machine of claim 5 , wherein the air ejector is located in a lower portion of the guide and outputs air into a lower section of the angled guide channel.
7. The machine of claim of claim 1 , further comprising at least one rotatably driven ejector wheel alongside the tooling segment for engaging an external surface of the tubular band to drive the tubular band off of the tooling segment, wherein the eject direction is at least partly against the feed direction, wherein the ejector wheel is angularly offset from the roller wheel about the central tooling axis.
8. The machine of claim 7 , wherein the ejector wheel rotates about an axis that runs substantially perpendicular to the central tooling axis.
9. The machine of claim 7 , wherein the ejector wheel is oriented such that a given point on a perimeter of the ejector wheel rotates in a plane that runs substantially parallel to the central tooling axis.
10. A machine for applying a tubular band to a container moving in a feed direction, the machine including:
a mandrel assembly about which tubular film is passed, wherein the mandrel assembly includes a central tooling axis and a lower output end formed by a tooling segment having a first side facing against the feed direction and a second side facing in the feed direction, with a free-spinning wheel protruding from the first side of tooling segment and a chamfer at the second side of the tooling segment, wherein the chamfer angles against the feed direction when moving downward along the tooling segment.
11. The machine of claim 10 , wherein the free-spinning wheel also protrudes below a bottom side of the tooling segment.
12. The machine of claim 10 , wherein, as the tubular band moves downward over the tooling segment, a first side portion of the tubular band contacts the free spinning wheel and the tubular band tilts relative to the central tooling axis so as to facilitate ejection of the tubular band in an eject direction that is at a non-zero angle relative to the central tooling axis.
13. The machine of claim of claim 12 , further comprising at least one rotatably driven ejector wheel alongside the tooling segment for engaging an external surface of the tubular band to drive the tubular band off of the tooling segment, wherein the eject direction is at least partly against the feed direction, wherein the ejector wheel is angularly offset from the free spinning wheel about the central tooling axis.
14. The machine of claim 13 , wherein the ejector wheel rotates about an axis that runs substantially perpendicular to the central tooling axis.
15. The machine of claim 13 , wherein the ejector wheel is oriented such that a given point on a perimeter of the ejector wheel rotates in a plane that runs substantially parallel to the central tooling axis.
16. The machine of claim 10 , further comprising a guide positioned alongside the tooling segment, the guide including a chamfer that aligns with the chamfer of the tooling segment to form an angled guide channel for the second side portion of the tubular band.
17. The machine of claim 16 , further comprising an air ejector oriented to blow air down and into the tubular band as the tubular band is ejected in the eject direction, wherein the air ejector is located in a lower portion of the guide and outputs air into a lower section of the angled guide channel.
18. The machine of claim 10 , further comprising an air ejector oriented to blow air down and into the tubular band as the tubular band is ejected in the eject direction.
19. The machine of claim 10 , wherein, as the tubular band moves downward over the tooling segment, a first side portion of the tubular band contacts the free spinning wheel and the tubular band tilts relative to the central tooling axis so cause the tubular band to move off of the tooling segment while in an orientation in which a central axis of the tubular band is at a non-zero angle relative to the central tooling axis.
20. The machine of claim 19 , wherein the first side portion of the tubular band is located upstream relative to the feed direction, wherein a second side portion of the tubular band is located downstream relative to the feed direction, and a lower edge of the second side portion of the tubular band moves downward below the tooling segment before a lower edge of the first side portion of the tubular band.