Method for operating a tubular bag machine for producing bags having a transverse bottom seam and a transverse top seam different to the transverse bottom seam
US10946991B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 2017 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Feb 7, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B9/213
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method for operating a tubular bag machine having a biaxially drivable transverse sealing device for producing tubular bags, a film sheet being closed by transverse bottom and top seams after having formed a film tube, an edge area of the film sheet forming a side fold using a side folder before forming the transverse bottom seam, and transverse top and bottom seams formed by adjacent tubular bags in one work step, said tubular bags formed in the draw direction having an alternating orientation, said side folder interacting with a stationary fold molding on the inner side of the film sheet, the minimal distance of the transverse sealing device to the fold molding alternatingly altered in the draw direction and being larger when producing the two transverse top seams than the minimal distance of the transverse sealing device to the fold molding when producing the transverse bottom seams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.