Modular packaging machine with web tension control
US6381919B1 · kind B1 · utility
10Cited by
43References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2001 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Mar 15, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2160/106
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A packaging machine for forming pouches from a web of material having web tension control. A second pair of infeed rolls allows web tension through a sealing section to be controlled. An unwind reel is power-driven according to downstream web demand to thereby minimize tension spikes through the infeed section. The power unwind further minimizes the amount of festoon area needed. An entire packaging machine may be provided using modules. The registration-related operations of each section are independently controlled so that each module need only coordinate input and/or output speeds with interfacing sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.