Sealing device and multifunctional vacuum sealing machine applying same
US12097986B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 16, 2019 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Dec 20, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B61/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A multifunctional vacuum sealing machine which includes a shell, and a vacuumizing device and a sealing device which are arranged in the shell, wherein the sealing device includes a hot welding device; cross sealing can be performed at a connector position twice, thus forming a completely-closed sealing line; and during vacuumizing, while a bag to be vacuumized is clamped and sealed by an upper cavity and a lower cavity, the bag is punched by a cutter head in the upper cavity, the bag is vacuumized, a punching position is in a closed area surrounded by one sealing line with the adjacent first heating wires and the second heating wire or in a closed area surrounded by the first heating wires and the second heating wires, and after vacuumizing, an opening is sealed at an original position, so that it is guaranteed that air cannot enter the vacuumized bag during sealing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.