Device and process for cooling granules
US6463745B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2001 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Aug 15, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2035/1683
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device and method for cooling granules, in particular wax granules, for processing in an injection-moulding machine, which has a cavity for receiving the granules and having an inlet opening and an outlet opening, and at least one further opening is provided for supplying a gaseous medium. In the device of the invention, the outlet opening is arranged directly or indirectly at the feed region of the screw of an injection-moulding machine and the cavity is connected to a cold-gas production device. In the process of the invention, the inlet temperature and the outlet temperature of the gas is determined and by determining the temperature difference, the preset theoretical temperature in the cavity is controlled and/or regulated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.