Operating device for shut-off needles in injection-moulding devices with needle valve nozzles
US7866975B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2006 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Dec 16, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/2831
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An operating device (10) for shut-off needles in injection moulding tools with needle valve nozzles has a displaceable element (20) to which at least two shut-off needles (16) can be fastened and which can be moved between two guide rails (30) mounted so as to be longitudinally displaceable in a second direction (D2) that is perpendicular to the first direction (D1). At least two slide elements (50) are arranged between the displaceable element (20) and the guide rails (30) in grooves (40) running obliquely with respect to the first direction (D1) and to the second direction (D2), which convert a movement of the guide rails (30) in the first direction (D1) into a displacement motion of the displaceable element (20) in the second direction (D2). In order to achieve a flexible and easily manageable construction that permits inexpensive subsequent extensions and/or changes, the invention provides that at least one additional displaceable element (120) is arranged at the guide rails, where at least two slide elements (150) are arranged between the additional displaceable element (120) and the additional guide rails (130) in grooves (140) running obliquely with respect to the first dire…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.