Apparatus for the granulating of plastic material with axial adjustment of the cutting head
US4614307A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1985 |
| Grant date | Sep 30, 1986 |
| Priority date | — |
| Expiry date | Jan 22, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B9/065
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for granulating plastic materials which comprises a housing adapted for connection to a granulating hood and including a knife shaft supporting a knife head having cutting knives proximate a perforated plate of an extruder. The knife shaft is mounted for axial displacement by a bearing sleeve which can be actuated by a hydraulic cylinder unit. In order to operate the cutting knives at an adjustable distance from the perforated plate or with constant pressing force, the bearing sleeve is displaceably supported in the housing in a bore which receives the knife shaft, and one end of the bearing sleeve bears against a compression spring which in turn bears against the housing to oppose advance of the knife shaft towards the perforated plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.