Automatic web tying apparatus
US4271657A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1979 |
| Grant date | Jun 9, 1981 |
| Priority date | — |
| Expiry date | Mar 16, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B11/045
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus and process for automatically making a spiral wrapped unitary package having a ring type or tied closure. In the apparatus a series of loads, each containing a plurality of units are fed one load at a time onto a turntable adjacent a material dispenser with the leading edge of the material from the dispenser being formed into a rope-like configuration by a roper mechanism and held by a clamp mechanism mounted on the turntable. The material is opened to its full web width, stretched and is spirally wrapped around the load at which time it is again formed into another rope-like configuration by the roper mechanism, and is positioned adjacent the leading edge where it is mechanically joined to the leading edge of the material by a ring type or tied closure. The roped material is then released from the clamp mechanism mounted on the turntable and the material is allowed to return to its memory position. The clamp mechanism again clamps the leading edge for the next load and the material is severed from the wrapped load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.