Vertical filling and packaging machine and method of manufacturing packaging bag with content
US9376225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2009 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Apr 6, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2801/69
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A vertical filling and packaging machine of the present invention includes tension devices (11) that are disposed near positions of ironing rollers (5) and that pull both sides of cylindrical film (1) laterally outward. Tension devices (11) pull both sides of cylindrical film (1) laterally outward to flatten a portion of cylindrical film (1) before the pair of ironing rollers (5) sandwiches the portion of cylindrical film (1), wherein the content has been injected into the cylindrical film (1). As a result, when lateral seal part (1e) is formed on cylindrical film (1) by lateral seal device (6), lateral seal part (1e) is not easily wrinkled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.