Injector for filling a mold with plastic particles
US10543623B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2014 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Jun 8, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/048
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to an injector for filling a mold with plastic particles, with a front part (2) and a base part (3), wherein the front part (2) has a mold-side orifice (23) and a feed for compressed air (15) and a feed for plastic particles (11), and the base part (3) is attached axially in the direction of conveyance behind the front part (2) and has a piston-cylinder unit (30, 37, 38), wherein a closing piston (49) for closing the mold-side orifice (23) is axially movable through the front part (2), together with an apparatus and a method for the production of a particle form part. The injector is characterised in that the closing piston (49) and the piston rod (47) bearing the closing piston on its front side have equal diameters or substantially equal diameters and the method comprises the following steps:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.