Device for feeding foils for the manufacture of foil bags and device for the manufacture of foil bags
US7124798B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2003 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | May 22, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/17
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A device 1 for feeding foil 2 for the manufacture of foil bags with at least one supply roll holder 3 that can be driven with a drive, at least one piece of conveyor equipment 4 for conveying a foil 2 from a supply roll 5 that is held in the supply roll holder 3, at least one foil sensor mechanism 6, which is arranged between the supply roll holder 3 and the conveyor equipment 4, which includes at least one stationary deflection roll 7 and a first and second dancer roll 8, 9, supported in movable supports 10, 11 for turning the foil 2 around, whereby the foil sensor mechanism 6 for regulating the drive of the supply roll holder 3 is formed depending on the distance from the first and/or second dancer roll 8, 9 to the deflection roll 7. The supports 10, 11 of the first and second dancer rolls 8, 9 are hung into at least one hanger 12 that is guided over a deflection wheel 13, 14 and in this way so coupled together that the weight of the first and second dancer rolls 8, 9 is at least partially offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.