Pelletizing device and blade head and/or grinding head for such a pelletizing device
US9079333B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2008 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Feb 4, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B9/065
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pelletizer, preferably in the form of an underwater pelletizer, having a cutter and/or grinding head and a tool carrier is provided. The tool carrier can rotatably be driven about a tool carrier axis of rotation, and at least one cutting and/or grinding tool, which is attached to the tool carrier and is spaced from the tool carrier axis of rotation, is used to knock off plastic melt emerging from a pelletizer die plate and/or for grinding the pelletizer die plate. In one embodiment, the cutting and/or grinding tool rotates together with the tool carrier about its tool carrier axis of rotation, and in another embodiment, the cutting and/or grinding tool can rotate about its own axis of rotation relative to the tool carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.