Modular strap feeder with motor for indexing and gripping
US9296501B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2011 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Oct 15, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B13/22
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A strap feed assembly for a strapping machine reduces wear on the pinch and drive wheels of feed head components by creating a gap between the pinch and drive wheels while using a cam and an engagement surface to grip the strap during a cut-and-seal phase of a strapping cycle. In the strap feed assembly, a rocker arm has an engagement surface and a pivot axis parallel to both the axis of rotation of the pinch wheel and the axis of rotation of the drive wheel. An eccentric cam, driven by a cam motor, is engageable with the engagement surface of the rocker to move the pinch wheel into and out of engagement with the drive wheel. Thus, the pinch and drive wheels are configured to grip the strap during a strap feed phase, while the cam and the engagement surface grip the strap during the cut-and-seal phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.