Velocity profiling in an extrusion apparatus
US6054077A · kind A · utility
212Cited by
10References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1999 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Jan 11, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y30/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus has an extrusion head for extruding a bead of a liquified material at an extruded pump flow rate, an extrusion head motor for driving the extrusion head at a variable head velocity, a pump for providing liquified material to the extrusion head, and a control for providing control signals to both the extrusion head motor and the pump. The control signals control operation of the extrusion head and the pump so that the head velocity is slaved to an estimated profile of the extruded pump flow rate divided by a predetermined bead cross-sectional area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.