Rotary tin-tie cutting mechanism for a packaging machine
US4586412A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1984 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Aug 9, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/54
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In a packaging machine of the type in which a "tin-tie" strip is affixed to a bag to allow repeated reclosures of the bag, a machine for cutting a continuous strip of tin-tie material into predetermined lengths and feeding the cut lengths into a bonding station where they are adhesively bonded to the bag proximate its top opening. The machine comprises a frame supporting a pair of electromagnetic clutches, one for selectively coupling a continuously driven shaft to an output shaft to which a tin-tie strip feedwheel is attached and the other for selectively coupling a continuously driven shaft to an output shaft to which a rotary cutting head is secured. Passage of a bag past a sensor triggers the two clutches which function to withdraw a predetermined length of tin-tie material from a supply reel and to sever the strip while feeding the cut length to the bonding station at the same speed as the bag is moving.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.