Injection molding adaptive compensation method based on melt viscosity fluctuation
US11772313B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2020 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Apr 15, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2025/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection molding adaptive compensation method based on melt viscosity fluctuation comprising: initializing equipment; in a pre-calculation stage, introducing melt into a mold cavity at a constant rate, collecting pre-calculation parameters in each sampling period T, and obtaining a first injection work in the pre-calculation stage by using a first calculation formula; in a self-adaptation stage, introducing the melt into the mold cavity at a constant rate, collecting adaptive parameters in each sampling period T, and obtaining a second injection work in the self-adaptation stage by using a second calculation formula; calling the PVT characteristics of current processing raw materials to construct a PVT relation function, and obtaining an optimized V/P switching point by using a PVT weight control model; and according to the injection work at the pre-calculation stage and the injection work at the present stage, obtaining an optimized holding pressure according to an injection work adjustment model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.