Apparatus for conveying and folding flexible packaging material
US6637583B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Dec 11, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2120/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The disclosure relates to an apparatus for conveying and folding flexible packaging material, comprising a conveyor (1) with a conveyor belt (3) which is provided with through-going holes and which, for a part of its length, extends substantially rectilinearly and with constant orientation along a suction box (9). By connecting the suction box (9) to a source of partial vacuum, a partial vacuum is created at the side of the belt facing towards the packaging material, which ensures that the packaging material is well-fixed and can thereby pass closely adjacent and be heated by a heating device (15) extending along the belt. The apparatus makes for concentrated, energy-efficient and well-defined heating of an edge region of the packaging material intended for thermosealing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.