Injection device and injection control method
US11911944B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2021 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Mar 1, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2945/76678
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Provided is an injection device and an injection control method which are capable of preventing a drooping phenomenon from an injection nozzle even during high cycle molding, and capable of appropriately plasticizing and molding a resin having poor thermal stability. An injection device (10) of the disclosure includes: an injection cylinder (30) which accumulates a molding material and has an injection nozzle (33) at the front; an injection plunger (31) which is moved backward in the injection cylinder (30); an injection plunger driving device (50, 150) which moves the injection plunger (31) backward; and an injection controller (60, 160). The injection controller (60, 160) retreats the injection plunger (31) by the injection plunger driving device (50, 150) to perform metering in a plastication metering step of metering the molding material supplied into the injection cylinder (30).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.