Method for manufacturing flexible bags and vertical type forming, filling and sealing machine
US6729108B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2001 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Mar 7, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B9/2007
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A vertical type forming, filling and sealing machine according to the present invention includes a film shaping mechanism for forming long lengths of film into tubular shapes, a vertical sealing mechanism for heat sealing the edges of the film formed by the film shaping mechanism in the longitudinal direction of the film to form tubular film, a supply nozzle for supplying contents into the tubular film, and two horizontal sealing mechanisms for heat sealing the tubular film in its width direction. A first horizontal sealing mechanism heat seals opposing inner surfaces of the tubular film except for a portion in the width direction. A second horizontal sealing mechanism is placed below the first horizontal sealing mechanism and heat seals the area which is not heat sealed by the first horizontal sealing mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.