Apparatus and method for moulding an opening device on a packaging sheet
US6835342B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2001 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | May 24, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7162
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for moulding opening devices onto a packaging material sheet at respective holes provided in the sheet includes first and second mould tools arrangeable in a closed position so as to be in contact with opposite sides of the sheet and in an open position so as to be positioned distally from the sheet. In the closed positions a mould cavity is formed between the first and second mould tools for accommodating a hole edge in the sheet. One of the mould tools includes a pair of half mould tools which are simultaneously moved from the open position to the closed position and vice versa such that the direction of movement of each of said half mould tools between the open and closed positions have a directional component extending substantially parallel to the extension plane and a directional component extending substantially perpendicularly to the extension plane, for reducing wear of the mould tools.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.